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Salt Water Hot Tub Pros and Cons: What Buyers Should Know Before They Invest

Hot Tubs > Hot Tub Buyer’s Guide > Salt Water Hot Tub Pros and Cons: What Buyers Should Know Before They Invest

Salt water hot tubs have become an increasingly popular choice for buyers who want a more natural-feeling spa experience with less daily chemical maintenance. Salt water systems generate chlorine automatically from dissolved salt, which means softer water and less time handling traditional sanitizers. But they’re not maintenance-free, and they come with their own set of considerations around cost, equipment lifespan, and water balancing that you should understand before making a purchase.

The salt concentration in these systems is much lower than ocean water—typically around 1,500 to 2,000 parts per million compared to the sea’s 35,000 ppm. This creates a gentler feel on your skin and eyes while still keeping the water clean and safe for hydrotherapy. Understanding both the advantages and limitations will help you decide whether a salt water hot tub aligns with your lifestyle and budget.

If you’re weighing your options between traditional chlorine systems and salt water technology, you’re not alone. Many buyers are drawn to the promise of simpler maintenance and a more pleasant soaking experience. At Mainely Tubs, we believe it’s important to look beyond the marketing and understand what ownership really involves. This guide breaks down what you need to know about costs, upkeep, water chemistry, and whether a salt water system is the right fit for your home.

family in Caldera Utopia Ravello hot tub

Key Advantages and Limitations of Salt Water Hot Tubs

Salt water hot tubs generate chlorine naturally through electrolysis, which creates a different ownership experience than traditional chlorine dosing. The softer water feel and reduced chemical handling appeals to many buyers, but these systems require specific maintenance routines and higher initial costs.

Health and Comfort Benefits

The water in a salt water hot tub feels noticeably softer against your skin compared to traditional chlorine systems. This happens because the freshwater salt system produces chlorine gradually, maintaining consistent sanitizer levels without the spikes that occur when you manually add chemicals.

You’ll experience less exposure to chloramines, which are the compounds responsible for the harsh chemical smell and eye irritation often associated with chlorine hot tubs. The steady chlorine production means fewer combined chlorine byproducts building up in your water.

Your skin and eyes typically feel less irritated after soaking sessions. Many users with sensitive skin find salt water systems more comfortable for regular hydrotherapy sessions, allowing them to enjoy the relaxation and therapeutic benefits of their hot tub more frequently without discomfort.

Maintenance and Water Care Expectations

You won’t need to handle or store chlorine tablets or granules, which reduces chemical contact and eliminates the need for dedicated storage space. The salt chlorine generator handles sanitizer production automatically when your hot tub runs.

However, you still need to monitor water chemistry regularly. The pH tends to drift upward in salt systems, so you’ll use pH decreaser more frequently than in traditional setups. You also need to test sanitizer levels, alkalinity, and calcium hardness on your regular maintenance schedule.

Adding hot tub salt initially and after water changes is necessary to maintain proper salinity levels. If you have hard water, you may need additional treatment since salt systems don’t soften existing mineral content. Some owners pair their system with an ozonator to reduce the workload on the salt cell.

Salt Cell and Cartridge Replacement Realities

The titanium cartridge is the core component that generates sanitizer from dissolved salt. Rather than using large, expensive equipment that requires tools to fix, modern hot tub salt systems use handy, drop-in cartridges. These cartridges typically last about 4 months each and are sold in convenient multi-packs, making them affordable and incredibly easy to maintain.

You’ll want to check your system’s status on your control panel periodically to ensure everything is running smoothly. Modern drop-in cartridges are designed to be completely maintenance-free during their lifespan, meaning you can simply pull the old one out and pop a fresh one in without messing around with harsh cleaning solutions.

Upfront Investment and Ongoing Costs

Salt water hot tubs typically cost $1,000 to $1,500 more than comparable models with standard water treatment systems. This includes either a factory-integrated salt system built into the acrylic shell during manufacturing or an aftermarket salt system added during hot tub installation.

The higher initial investment covers the salt chlorine generator, control systems, and often upgraded components designed to handle salt water. Premium models with full-foam insulation and energy-efficient heaters may command additional costs but reduce long-term operating expenses.

Your ongoing costs will shift from buying chlorine supplies to your yearly supply of sanitizer cartridges (around $300 for a 3-pack) and an additional $10 to $15 a month on basic water balancers, test strips, and spa-grade salt. You can check current cartridge pricing anytime on the Mainely Tubs e-store.

Energy efficiency varies based on your setup and insulation quality, not the water treatment system itself. The salt system adds minimal power consumption, and proper maintenance of your heater and jets matters more for monthly utility costs than your sanitizer choice.

Guidance for Prospective Owners

Salt water systems aren’t right for everyone, but they excel in specific scenarios where water quality, comfort, and simplified sanitization align with your priorities. Understanding which buyers benefit most — and what to scrutinize during purchase — helps you make an informed decision.

Ideal Users and Key Considerations

Salt water hot tubs work best for buyers who prioritize skin comfort and want to minimize direct chemical handling. If you have sensitive skin, chlorine sensitivity, or prefer gentler water that feels softer on your body, a salt system delivers noticeable benefits.

They’re also ideal for owners who value consistent water quality with less hands-on maintenance. Once you establish proper water balance, the system generates sanitizer automatically, reducing the need for frequent chemical additions.

You should reconsider if:

Your budget is tight and upfront costs matter more than long-term convenience
You prefer the lowest possible operating expenses
You’re looking at an inflatable hot tub or entry-level portable hot tub where salt systems aren’t typically available
You don’t mind traditional chlorine or bromine maintenance routines

Brands like Hot Spring Spas and Caldera Spas offer the industry’s only integrated salt water systems with intuitive controls and solid warranty coverage. Look for models with quality multi-density insulation and an insulated cover to protect your investment.

Pros & Cons of a Salt Water System at a Glance

The Pros: What Makes Salt Water Systems Worth Considering

Softer, More Comfortable Water

This is the most consistently reported benefit from salt water hot tub owners. The water feels noticeably silkier on the skin — gentler on eyes, hair, and sensitive skin — because the low, steady chlorine level eliminates the harsh spikes that cause irritation in conventional spas. Many soakers describe it as closer to the feeling of naturally soft spring water.

Fewer Manual Chemical Additions

Because the salt cell handles sanitization automatically, you’re not making constant trips to the store for chlorine, bromine, or shock treatments. Your weekly chemical routine is reduced primarily to testing and occasionally adjusting pH and alkalinity — a significant time savings for busy households.

More Stable Water Chemistry

Manual chlorine dosing creates peaks and valleys — the water is heavily sanitized right after treatment, then gradually loses protection until the next dose. Salt systems produce chlorine continuously at a low, consistent level, which means your water quality is more stable day to day, with fewer sudden chemistry swings to correct.

Less Chemical Smell

The sharp chlorine odor common in over-dosed or unbalanced spas is significantly reduced in salt water systems. This makes a meaningful difference in the experience of soaking, particularly for those who find strong chemical smells irritating or who soak with children.

Lower Chemical Handling

For owners who prefer minimal contact with concentrated pool chemicals, salt systems are a genuine improvement. You’ll still handle some balancing chemicals, but the frequency and quantity are lower than in a traditional chlorine routine — a welcome change for those with sensitivities or who simply prefer a more hands-off approach.

The Cons: What You Should Know Before You Buy

Higher Upfront Cost

Salt water systems add to the purchase price of a hot tub, either as a factory-installed feature or as an optional upgrade. Depending on the brand and model, that premium can range from a few hundred to over a thousand dollars above a comparable non-salt spa. This is a real cost to factor into your budget, though many owners find the long-term savings on chemicals partially offset the gap over time.

Salt Cell or Cartridge Replacement

The heart of a modern salt system is a replaceable titanium cartridge. These components handle the heavy lifting of chlorine generation and are designed to be quick and easy to swap out. Depending on your water care habits and how often you soak, you will replace this disposable cartridge a few times a year. It is a simple, plug-and-play step that traditional chlorine tubs do not have.

pH Management Still Required

One of the most common misconceptions about salt water spas is that they’re truly maintenance-free. They’re not — they’re significantly lower maintenance. Salt systems can cause pH to drift upward over time, which means regular pH testing and occasional adjustment with a pH decreaser remains part of your routine. Skipping this step can lead to cloudy water, scale buildup on the salt cell, and potential equipment strain.

Slightly More Complex Equipment

Adding a salt generator to a hot tub introduces one more component that can require maintenance, troubleshooting, or occasional service. For owners who prefer the simplest possible mechanical setup, the traditional chlorine system has fewer moving parts. That said, modern salt systems — especially factory-integrated units — are designed for reliability and come with manufacturer warranties.

Learning Curve for New Owners

If you’re new to hot tub ownership, the salt system adds a layer of understanding beyond just chlorine and pH — you’ll need to learn about salt levels, cell maintenance, and how to interpret your system’s indicator lights or display panel. Most owners get comfortable within a few weeks, and resources like Mainely Tubs’ Knowledge Base make the learning curve much shorter.

To make it even easier, Mainely Tubs includes a complimentary white glove service visit within 90 days of your delivery. We’ll come to your home and walk you through your water chemistry step-by-step and answer any questions you have.

At a Glance: Salt Water vs. Traditional Chlorine

Factor	Salt Water System	Traditional Chlorine
Water Feel	Soft, silky, gentle on skin & eyes	Clean feel when balanced; can irritate if chemistry drifts
Chlorine Smell	Minimal — low, consistent levels	More noticeable, especially after manual dosing
Manual Chemical Work	Low — mostly pH checks and adjustments	Moderate — regular chlorine/shock additions required
Chemistry Stability	High — continuous, automated sanitization	Variable — peaks after dosing, drops between sessions
Upfront Cost	Higher — salt cell adds to purchase price	Lower — simpler system, lower sticker price
Recurring Costs	Disposable cartridge replacement 3x per year (about every 4 months)	Ongoing chlorine, shock, and chemical purchases
Equipment Complexity	One additional component	Fewer mechanical parts
pH Management	Still required — pH can drift upward	Required — manual monitoring and adjustment
Technology Complexity	Slightly higher; salt cell to maintain	Simpler; fewer components
Best Ownership Style	Owners who prefer automated, steady water care	Owners comfortable with a regular chemical routine

Final Considerations: Who Is a Salt Water Hot Tub Best For?

Salt water systems are a great fit for a lot of people — but not everyone. Here’s an honest look at who gets the most value from the upgrade, and who might be better served by a traditional approach.

Salt Water Is Likely the Right Choice If You…

Want to minimize your hands-on involvement with water chemistry
Have sensitive skin, allergies, or find chlorine irritating
Plan to use your hot tub frequently (3+ times per week) and want consistent water quality
Have children or family members who are particularly affected by chemical smells or skin sensitivity
Are willing to invest more upfront for a better long-term ownership experience
Appreciate technology that does more of the work for you

A Traditional Chlorine Spa May Be a Better Fit If You…

Prefer a setup with fewer mechanical components
Are comfortable — or even enjoy — managing your own water chemistry
Have a tighter upfront budget and want to maximize what you get for it
Soak infrequently and prefer to add chemicals as needed rather than managing a continuous system
Already have experience with pool or hot tub chemistry and have a routine that works for you

What to Watch for When Buying

Read the warranty carefully and confirm what’s covered for the salt cell and related components. Some manufacturers exclude certain salt system parts or limit coverage duration.

Ask about cartridge replacement frequency and costs. Modern integrated systems use affordable, quick-change sanitizer cartridges that keep ongoing expenses low and predictable.

Examine the hot tub brand’s reputation for salt system reliability. Not all manufacturers engineer salt systems equally — some integrate them seamlessly while others treat them as aftermarket add-ons.

Avoid these common mistakes:

Buying without testing the intuitive controls in person at a showroom
Ignoring seating comfort—check bench seats, lounge seat, and lounger seat configurations
Overlooking insulation quality if you live in cold climates
Skipping questions about outdoor hot tub winterization with salt systems

In the end, there’s no universally superior system — only the right system for the way you live and soak. If you’re genuinely on the fence, the best thing you can do is visit a Mainely Tubs showroom and talk it through with one of our wellness consultants. They can walk you through the specific models that offer salt systems and help you weigh the trade-offs against your real-world habits and budget.

Frequently Asked Questions

Salt water hot tub systems involve specific technology and maintenance requirements that differ from traditional sanitization methods. Understanding how these systems function, their cost structure, and their suitability for different situations helps buyers make informed decisions.

How does a salt system in a hot tub work compared with traditional chlorine or bromine?

A salt water system uses a titanium cell to convert dissolved salt into chlorine through electrolysis, automatically generating sanitizer as water circulates through the system. Traditional chlorine or bromine systems require you to manually add chemicals to the water on a regular schedule. The salt system continuously produces small amounts of chlorine, maintaining consistent sanitization levels without the need for granular chlorine or tablets.

Is a saltwater hot tub actually easier to maintain day-to-day, and what regular tasks are still required?

Salt water hot tubs reduce the frequency of chemical additions, but you still need to test and balance pH, alkalinity, and calcium hardness weekly. You’ll need to rinse filter cartridges weekly and perform a deep chemical soak every 3 to 4 months, inspect the salt cell for buildup monthly, and add salt when levels drop below the manufacturer’s recommended range. The main advantage is less handling of harsh chemicals, not the elimination of all maintenance tasks.

What are the typical upfront and long-term ownership costs of a saltwater hot tub versus a standard hot tub?

Salt water hot tubs cost $1,000 to $1,500 more upfront than comparable standard models due to the integrated salt system technology. Over five years, ongoing costs average about $319 annually for salt system cartridges plus $120 to $180 for salt and balancers, compared to $240 to $480 annually for traditional chlorine systems. The total cost difference narrows over time as you save on chemicals but invest in specialized components.

How does saltwater affect water feel, skin comfort, and potential irritation for sensitive users?

Salt water hot tubs produce softer-feeling water that’s less harsh on skin, eyes, and swimwear compared to manually chlorinated water with higher chemical concentrations. The automated generation of chlorine creates more stable sanitizer levels, reducing the chlorine smell and eye irritation that occurs when chlorine fluctuates dramatically. Many users with sensitive skin or chemical sensitivities report greater comfort, though the water still contains chlorine at effective sanitizing levels.

What ongoing replacement parts and consumables should owners expect, and how often do they need to be replaced?

The salt cartridge typically needs replacement every 4 months (or 3 times per year) and is sold in convenient multi-packs. You’ll rinse filter cartridges every week to remove surface debris, and soak them in a cleaning solution every 3 to 4 months to break down oils. Replace filters entirely every 12 to 18 months, or sooner if you notice reduced water flow or torn pleats. Testing supplies, pH adjusters, and occasional shock treatments are also ongoing expenses.

Are there situations where a saltwater system isn’t recommended, such as local rules, water chemistry challenges, or certain equipment materials?

Salt water systems aren’t ideal if your source water has extremely high mineral content or metal contamination, as this can interfere with the salt cell and cause staining. However, using a Clean Screen pre-filter from Mainely Tubs when filling can help by filtering out organic contaminants, tannins, and metals.

Some older hot tub models or aftermarket heaters may use components that corrode faster in salt water environments. If you live in an area with water restrictions that make regular draining and refilling difficult, managing salt concentration becomes more challenging since salt doesn’t evaporate and accumulates over time.

Ready to Explore Salt Water Hot Tubs in Person?

The best way to decide if a salt water spa is right for you is to get in one. Mainely Tubs offers free, no-pressure test soaks in private rooms at our New England showrooms. Reach out to a location near you to schedule a private soak, or stop by anytime to speak with a wellness consultant—no pressure, just honest answers.

About Mainely Tubs in Maine, New Hampshire, Massachusetts, and Rhode Island

Mainely Tubs is a 100% Employee Owned premier Hot Spring Spas dealer. We sell and service new hot tubs, used hot tubs, portable spas, swim spas, saunas, cold plunges, hot tub accessories, hot tub water care, and more. Our Brands Include: Hot Spring Spas, Caldera Spas, Freeflow Spas, Endless Pools Swim Spas, Tylo Saunas, Covana, Leisure Time, Fresh Water, Silk Balance, and other brands you can trust.

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Salt Water Hot Tub Maintenance: A Simple Weekly and Monthly Care Guide

Hot Tubs > Hot Tub Buyer’s Guide > Salt Water Hot Tub Maintenance: A Simple Weekly and Monthly Care Guide

Salt water hot tubs offer a gentler, more natural spa experience compared to traditional chlorine systems. But they still require regular care to keep the water clear, the equipment running smoothly, and your investment protected. A consistent salt water hot tub maintenance routine—broken into weekly, monthly, and seasonal tasks—prevents cloudy water, equipment failures, and costly repairs down the line.

The good news is that salt water systems are designed to be lower-maintenance once you understand the basics. You’ll spend less time adding chemicals and more time enjoying your spa. This guide walks you through exactly what to check and when, so you can stay ahead of problems before they start.

Whether you’re a new owner or looking to refine your routine, this schedule gives you a clear path to clean water and reliable performance year-round. You’ll also learn when it makes sense to call in a professional and how to extend the life of your salt system with smart, simple habits.

Essential Weekly and Monthly Salt Water Hot Tub Tasks

Salt water hot tub maintenance revolves around regular water testing, keeping filters and the salt cell clean, maintaining proper water levels, and applying shock treatments when needed. These tasks prevent buildup, protect equipment, and keep your water safe and inviting.

Testing and Adjusting Water Chemistry

You should check your water at least twice per week using a test strip. Keep your free chlorine level between 1 to 5 ppm (a target of 3 ppm is ideal for daily use). Your pH should stay between 7.2 and 7.8.

Total alkalinity works best between 80 and 120 ppm. Adjust this first, as it helps stabilize your pH. Finally, unlike standard hot tubs, salt water systems require an ultra-low calcium hardness level at or below 50 ppm. Keeping calcium low protects your salt cartridge from getting covered in hard mineral scale.

Maintaining Filters and the Salt Cell

Rinse your cartridge filter weekly with a garden hose to remove debris and oils. A simple filter rinse takes less than five minutes and prevents restricted flow.

Plan a deep clean filter soak every month using a filter cleaner solution. Remove the filter, spray it down, then soak it in cleaner for several hours or overnight. Rinse thoroughly before reinstalling.

Inspect the salt cell or cartridge monthly for scale or buildup. If you see white deposits, clean the cell with a mild acid solution or follow the manufacturer’s instructions. Some systems have self-cleaning cycles that reduce manual work.

Lubricate o-rings on filter housings and union fittings during monthly maintenance to prevent air leaks and maintain proper seals. Check your skimmer basket weekly and empty any leaves or debris.

Cleaning Surfaces and Managing Water Level

Wipe down the waterline weekly with a soft cloth or sponge to remove oils and scum. This prevents a visible ring from forming and keeps surfaces looking fresh.

Check water level each week and top off as needed. Water should sit at the midpoint of your skimmer opening for proper circulation and filtration.

Use a pool brush or soft scrub pad monthly to clean shell surfaces, jets, and hard-to-reach corners. This prevents biofilm and algae from taking hold. Clean your hot tub cover monthly as well, wiping both sides and conditioning the vinyl to extend its life.

Empty and clean the skimmer basket weekly as part of your hot tub maintenance checklist. A clogged basket reduces circulation and strains your pump.

Routine Sanitizing and Shock Treatments

Even with a salt system producing chlorine, you’ll need to shock your hot tub every one to two weeks. Use non-chlorine shock to oxidize chloramines, oils, and organic waste that regular sanitizer levels can’t break down.

After heavy use or a large gathering, shock the water immediately. Run the jets on high for 15 minutes after adding shock to distribute it evenly. Wait at least 20 minutes before entering the water.

If you notice cloudy water, strong odors, or irritation, it often means chloramines have built up. A shock treatment breaks these down and restores water clarity. Follow your hot tub maintenance schedule and shock consistently to avoid these issues.

Monitor sanitizer levels closely during the first month of ownership as you learn your tub’s patterns. Usage frequency, bather load, and temperature all affect how much chlorine your system needs to produce.

Quarterly, Seasonal, and Professional Service Considerations

Beyond weekly and monthly tasks, your salt water hot tub needs deeper maintenance every few months and seasonal attention to stay in peak condition. These longer-interval tasks protect your investment and catch potential issues before they become expensive problems.

When and How to Drain and Refill

Traditional hot tubs need to be emptied every few months, but a major benefit of a premium salt water system is its efficiency. Because it automatically generates clean sanitizer, you only need to drain and refill your tub once per year with normal use.

Before your annual drain, turn off the power at the breaker. Use a line flush product to clear out the internal pipes, empty the tub completely, and wipe down the empty shell with a soft cloth before filling it back up with fresh, pre-filtered water.

Important reminder: Never attempt to drain and refill your hot tub in freezing temperatures because it could cause serious freeze damage.

Seasonal Maintenance Tips

Winter requires extra attention if you live in a cold climate. Check your cover regularly for snow accumulation and remove it to prevent damage. Inspect the cover latches and seals monthly, as cold weather can make them brittle.

Summer brings its own challenges with increased evaporation and higher ambient temperatures. You may need to test and adjust water chemistry more frequently during hot months. Keep an eye on water levels and top off as needed, remembering to retest salt concentration after adding significant amounts of fresh water.

Spring and fall are ideal times for deep cleaning tasks. Remove and soak your filters in filter cleaner solution during these transitions. Inspect your hot tub cabinet and panels for signs of weather damage or pest intrusion.

Deciding When to Call a Professional

Some maintenance tasks require professional expertise and equipment. Call a service technician if you notice persistent water chemistry problems that don’t respond to standard adjustments or if your salt system displays error codes you can’t resolve.

Equipment malfunctions like pump noise, weak jets, or heating issues need professional diagnosis. Electrical problems or tripped breakers should always be handled by qualified technicians for safety reasons.

Schedule annual professional inspections even when everything seems fine. Technicians can spot worn components, test equipment performance, and perform spa maintenance tasks that prevent breakdowns. This proactive approach costs less than emergency repairs and extends your hot tub’s lifespan.

If you’re unsure about any hot tub maintenance procedures, reaching out for guidance is always better than risking damage to your system.

Keeping a Long-Term Maintenance Checklist

Document every maintenance task you perform, including dates, test results, and any adjustments made. A simple notebook or phone app works well for tracking your maintenance schedule over time.

Record salt cell cleaning dates, filter replacements, and water chemistry readings. This history helps you identify patterns and predict when components need attention. You’ll notice if pH consistently drifts in one direction or if alkalinity requires frequent adjustment.

Note any unusual observations like foam, cloudiness, or changes in water feel. These details help technicians diagnose problems if issues develop. Keep equipment serial numbers, warranty information, and service records in one location for easy reference.

Your maintenance log becomes especially valuable if you sell your home or hot tub. Documented care demonstrates responsible ownership and proper upkeep, similar to keeping records for maintenance tasks.

Your Salt Water Hot Tub Maintenance Checklist

Weekly
(2–3x per week)

Test free chlorine levels to maintain a 1–5 ppm range (aim for 3 ppm).
Check and adjust pH to keep it between 7.2 and 7.8 (aim for 7.4).
Balance total alkalinity to stay within 40–120 ppm before fixing pH (aim for 80ppm).
Visually check water clarity, smell, and jet performance.
Empty leaves and debris from the skimmer basket to protect water flow.

Monthly

Check and adjust salt levels per your system’s target range
Rinse filter cartridges with a garden hose and cleaning wand
Inspect salt cell or cartridge for scale buildup or wear
Add non-chlorine shock and run jets for 15–20 minutes
Review system indicator lights and note cartridge runtime hours

Annually

Drain the hot tub completely
Clean shell, waterline, and filter housing
Refill with pre-filtered water
Rebalance all chemistry fresh (alkalinity → pH → salt)
Replace filter cartridges if degraded

Seasonal/ As Needed

Inspect cover for cracks, waterlogging, or mold
Check insulated cabinet panels for winter
Confirm freeze protection settings are active (fall)
Inspect all plumbing and fittings after winter
Schedule professional service if error codes persist
Deep-soak filter cartridges overnight in a cleaning solution every 3 to 4 months.

Frequently Asked Questions

Salt water hot tub owners often have the same practical questions about testing schedules, chemical adjustments, filter care, salt levels, and when to seek professional help. Here are clear answers to the most common maintenance concerns.

What should I test in my hot tub water each week, and what ranges should I aim for?

Test pH, total alkalinity, and sanitizer levels every week. Your pH should stay between 7.2 and 7.8, with 7.4 being ideal. Total alkalinity belongs in the 80 to 120 ppm range, and free chlorine should read 1 to 5 ppm (aiming for 3 ppm). If you notice cloudy water or skin irritation between weekly tests, check your levels immediately.

How do I balance pH and total alkalinity without chasing readings up and down?

Always adjust total alkalinity first, since it acts as a pH buffer. If alkalinity is low, add an alkalinity increaser and wait four hours before retesting. Once alkalinity is stable in the 80 to 120 ppm range, adjust pH if needed using pH increaser or decreaser. Small, gradual adjustments prevent the frustrating cycle of overcorrecting.

How can I safely lower the salt level if it gets too high?

The only way to reduce salt concentration is to drain some water and refill with fresh water. Calculate how much water you need to remove based on your current and target salt levels. Most salt systems operate best between 2,000 and 3,000 ppm, so if you’re above that range, a partial drain brings levels back down safely.

How often should I clean or replace hot tub filters, and what’s the best way to do it?

Rinse your filters with a garden hose every week to remove surface debris and oils. Every 3 to 4 months, soak them overnight in a filter cleaning solution to break down oils and minerals. Replace filters entirely every 12 to 18 months, or sooner if you notice reduced water flow or torn pleats.

What are the signs that the salt cartridge or cell needs cleaning or replacement?

Look for low chlorine readings even when salt levels are correct, visible calcium buildup on the cell plates, or error messages from your control panel. Inspect your salt cell every month and clean off mineral deposits following the manufacturer’s recommended solution or replace the disposable cartridge if your system utilizes a modern drop-in design. Never use harsh raw acid washes unless explicitly directed by the manufacturer.

When should I drain and refill my hot tub, and when is it time to call a service professional?

Thanks to the efficiency of automated salt systems, you only need to drain and refill your hot tub once per year with normal use. Call one of our service professionals at Mainely Tubs when you experience persistent water balance issues, equipment error codes you can’t resolve, pump or heater malfunctions, or if your salt system stops producing chlorine despite proper salt levels.

Questions About Your Salt Water Hot Tub?

Whether you’re a new owner just getting started or a longtime soaker looking for professional water care support, our team at Mainely Tubs is always here to help. Visit any of our seven showrooms across Maine, New Hampshire, Massachusetts, and Rhode Island to speak with a wellness consultant — no pressure, just honest answers.

About Mainely Tubs in Maine, New Hampshire, Massachusetts, and Rhode Island

About Us

Download the Ultimate Hot Tub Buyer’s Guide

Here’s Everything You Need to Know!

We’ve pulled together everything you need to know about buying a hot tub. Learn about everything from hot tub functions & features to hot tub maintenance & costs all in one convenient guide.

See the guide

Stop Dreading Hot Tub Maintenance

Hot Tubs > Hot Tub Buyer’s Guide > Stop Dreading Hot Tub Maintenance

Owning a hot tub should mean relaxing, not wrestling with test strips and an endless to-do list. The good news? Modern hot tubs are designed to make water care easier than ever. Between salt systems, ozone/UV sanitizers, and mineral cartridges, these features work together to keep your water crystal clear and gentle on your skin while dramatically cutting down on routine chores.

buyers guide 1440x960 Hot Spring Hot Spot Relay 2020 AlpineWhite Storm Lifestyle Watercare 01

Here’s five smart water-care features you’ll find in the hot tubs we offer at Mainely Tubs.

1. Gentler Water Without the Fuss

Salt water systems replace much of the manual dosing you used to do. Add salt to the water once and the system generates a steady, low level of sanitizer so your tub stays balanced with far less daily input. The FreshWater™ Salt System, available across all Hot Spring and Caldera lineups (excluding Freeflow spas), is a great example of this “set it and forget it” approach. The water feels softer, and owners report fewer surprise swings in chemistry. For people who hate constant dosing, a salt system is the simplest upgrade toward low-maintenance ownership.

2. A Helping Hand for Clean Water

Ozone systems break down oils, lotions, and organic contaminants before they overwhelm your sanitizer. Think of them as an assistant that reduces the workload on chlorine or bromine and helps keep water clearer between treatments. Mainely Tubs offers ozone options and combines them with mineral and cartridge systems for a multi-layered approach to water care. The result: clearer water, less frequent shocking, and longer filter life.

3. Even Easier Water Maintenance

For owners who prefer a smarter, truly automated approach to water maintenance, consider the FreshWater IQ Smart Monitoring System. This intelligent, in-line system elevates saltwater maintenance to the next level.

Automated Testing: FreshWater IQ tests your spa water hourly—displaying clear, easy-to-follow recommendations for balancing pH, chlorine, and salt levels right on your control panel or app.
No More Guessing: You eliminate much of the manual test strip guesswork and reduce chemical waste. You’ll often enjoy cleaner water and longer intervals between full water changes.

Talk to your dealer about which tubs are compatible with this system—the smartest route to low-maintenance ownership.

4. Quiet, Continuous Care

A quieter, smarter pump schedule and continuous low-speed circulation can keep the water moving through filters without hogging energy. Modern spa packs coordinate low-speed filtration with high-power jet cycles so the system cleans in the background while you live your life. Combined with easy-access filter bays, the result is fewer cloudy-water emergencies and less elbow grease when filters do need cleaning. In short: the spa does the work; you do the relaxing.

5. Water-Care Plans & Hybrid Support

Even the best automation benefits from regular professional attention. Mainely Tubs’ water-care plans pair the smart systems above with scheduled service: filter checks, chemistry tuning, and periodic deep cleans. This hybrid model—combining FreshWater IQ Smart Monitoring automation with pro support—delivers a truly simplified experience. The spa lets you know when to perform routine dosing, while trained techs handle the heavy lifting and annual checks that keep everything running long term.

How to Choose a Low-Maintenance Hot Tub at Mainely Tubs

When you’re shopping, use this mini-checklist to find a tub that actually reduces chores:

Check compatibility with salt or FROG @ease systems. If you want lower daily dosing, make sure the model supports the water-care system you prefer.
Look for ozone options. These systems help lighten the load on your sanitizer and filters, keeping water cleaner for longer.
Ask about FreshWater IQ Smart Monitoring. This advanced system tests your water hourly and tells you exactly what chemicals to add.
Consider filter access and maintenance indicators. Easy-to-reach filters and clear alerts make the tasks you do have to do much simpler.
Pay attention to automated circulation and multi-speed pumps. These keep filtration running efficiently in the background without extra effort.
Explore Maintenance & Water Care Plans. Professional support, like the comprehensive plans offered by Mainely Tubs, can handle routine maintenance, water balancing, and give you ultimate peace of mind.

Asking these questions at the showroom ensures your new spa matches your lifestyle—and your tolerance for maintenance.

What “Self-Cleaning” Actually Means

Let’s be real: no hot tub is completely maintenance-free. You’ll still clean filters, test water, and change cartridges or salt when required. But with the right combination of salt generation, mineral cartridges, ozone assist, and automated filtration, the frequency and complexity of those tasks drop a lot.

Visit one of our seven Mainely Tubs showrooms. Try the systems, feel the water, and talk to our employee-owners about which setup fits your life. With smart water care, your tub should be the easiest part of owning an outdoor sanctuary.

About Mainely Tubs in Maine, New Hampshire, Massachusetts, and Rhode Island

About Us

Download the Ultimate Hot Tub Buyer’s Guide

Here’s Everything You Need to Know!

We’ve pulled together everything you need to know about buying a hot tub. Learn about everything from hot tub functions & features to hot tub maintenance & costs all in one convenient guide.

See the guide

Keeping Your Hot Tub Crystal Clear: A Guide to Cleaning Hot Tub Filters

Hot Tubs > Hot Tub Buyer’s Guide > Keeping Your Hot Tub Crystal Clear: A Guide to Cleaning Hot Tub Filters

Imagine sinking into your hot tub after a long day, only to be greeted by cloudy, murky water. Yuck! To maintain that sparkling, inviting oasis, cleaning your hot tub filter regularly is essential. A clean hot tub filter ensures proper water circulation, removes contaminants, and keeps your sanitizer working effectively. Read on as we dive into the world of hot tub filter maintenance.

couple in a hot tub with crystal clear water

Understanding Your Hot Tub Filter

Your hot tub filter acts as the workhorse of your spa’s hygiene system. Typically made from pleated polyester fabric, it traps dirt, debris, body oils, and lotions as water circulates through the hot tub. Over time, this buildup can clog the filter, hindering its ability to function properly. The consequences? Reduced water flow, cloudy water, and a potential breeding ground for bacteria.

The Cleaning Cavalry: Tools and Supplies

Before we tackle the cleaning process, here are some hot tub supplies you’ll need:

Garden hose with a spray nozzle: This trusty tool will be your weapon of choice for rinsing away debris. If you have a FreshWater Salt System hot tub you can consider using a Clean Screen Pre-Filter. This attaches to your hose to filter out organic contaminants, tannins and metals so they don’t make it into your spa.
Clean bucket: You’ll need this to soak your filter in a cleaning solution.
Hot tub filter cleaner: Specially formulated hot tub filter cleaners are highly effective at removing built-up grime and oils. Look for a cleaner compatible with your filter type.
Soft rags or sponges (optional): These can be helpful for gently removing stubborn debris.

Mission: Clean Filter! A Step-by-Step Guide

Have everything? Get ready to clean!

Power Down and Locate: First things first, turn off your hot tub’s power supply. Safety first! Then, identify the filter compartment, which is usually located near the footwell or on the side of the spa. Consult your hot tub’s manual for specific instructions.
Filter Removal: Following your manual’s guidance, carefully remove the filter cover and take out the filter cartridge. Handle it with care to avoid damaging the pleats.
Initial Rinse: Hold the filter upright outdoors and spray it thoroughly with a garden hose using a gentle, wide spray pattern. Avoid using high-pressure settings, as this can damage the filter fabric. The goal is to remove loose debris like leaves, hair, and dirt.
Weekly Maintenance Rinse (Optional): For optimal performance, it’s recommended to give your filter a quick rinse with the hose at least once a week. This helps prevent buildup from accumulating in the first place.
Deep Cleaning with Solution (Monthly): For a deeper clean, which should be done at least once a month or whenever your filter appears clogged, fill your clean bucket with warm water and add the recommended amount of hot tub filter cleaner according to the manufacturer’s instructions. Submerge the filter completely in the solution and allow it to soak for the recommended time (usually 24 hours).
Post-Soak Scrub (Optional): After soaking, you can gently scrub the filter pleats with a soft rag or sponge to remove any stubborn grime. Avoid using abrasive brushes or cleaners, as these can damage the filter.
Final Rinse: Rinse the filter thoroughly with clean water from your garden hose until all cleaning solution residue is removed. You’ll know it’s clean when the rinse water runs clear.
Inspection Time: While the filter is still wet, take a moment to inspect it for any tears, rips, or permanent stains. If you notice significant damage, it’s time to replace the filter.
Drying and Replacement: Allow the clean filter to air dry completely in a shaded, well-ventilated area before placing it back in the hot tub. Never reinstall a wet filter, as this can trap moisture and lead to mold growth.
Replacing Your Filter: Polyester or “paper” filter cartridges typically need to be replaced every 2-3 years depending on wear. Ceramic fiber filter cartridges need to be replaced every 4-6 years depending on wear. These are just recommended timelines on regular use, but you can always clean your filters sooner if they become damaged or clogged beyond cleaning. Consult your hot tub manual for the recommended replacement schedule for your specific filter type.

Prolonging the Life of Your Filter

Taking care of your filter helps it work better and longer. Here are some tips that will help prolong the life of your hot tub filter.

Shower Before Soaking: Taking a quick rinse before entering your hot tub helps minimize body oils, lotions, and other contaminants from entering the water and clogging the filter.
Maintain Proper Water Chemistry: Balanced water chemistry is vital for filter performance. Regular testing and adjustments of sanitizer level, pH, and total alkalinity will help prevent excessive strain on your filter.
Consider a Filter Cover: Using a filter cover can help trap some debris before it reaches the filter.

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Soaking in Serenity: Hot Tub Water Care

Hot Tubs > Hot Tub Buyer’s Guide > Soaking in Serenity: Hot Tub Water Care

Ah, the blissful escape of a hot tub soak. But behind those swirling jets and comforting warmth lies a world of unseen science—hot tub water chemistry. Maintaining the proper balance of chemicals is essential for a safe, enjoyable, and long-lasting hot tub experience. Fear not, fellow soakers! This guide will unveil the secrets of hot tub water care, ensuring your bubbly haven remains a tranquil oasis.

The Balancing Act: Essential Water Chemistry

Imagine hot tub water as a delicate ecosystem. Various factors, like sanitizer levels, pH, and minerals, all play a role in keeping the water clean, clear, and comfortable. Let’s look at the key elements of hot tub water chemistry:

Sanitizer: The frontline defense against bacteria and algae growth. Chlorine and bromine are the most common sanitizers, each with its pros and cons. Chlorine is readily available and effective but can irritate skin and eyes at high levels. Bromine is gentler on skin but requires additional balancing chemicals.
pH Level: This measures the water’s acidity on a scale of 0 (very acidic) to 14 (very basic). The ideal range for hot tubs is 7.4-7.8. Water that’s too acidic can irritate skin and damage equipment, while overly basic water can become cloudy and promote scaling.
Total Alkalinity (TA): Acts as a buffer, preventing rapid pH swings. Maintaining proper TA levels (typically 80-120 ppm) helps ensure your sanitizer functions effectively.
Free Chlorine/Bromine Residual: This refers to the amount of active sanitizer available to fight contaminants. Regular testing is crucial to maintain the recommended levels (chlorine: 3>5 ppm is good, 3 ppm is recommended and bromine: 1-3 ppm).
Calcium Hardness (CH): The concentration of calcium and magnesium in the water. While some hardness is beneficial, excessively hard water can lead to scale buildup on the spa shell and equipment. The ideal range for CH is 150-250 ppm.

Testing, Testing, 1, 2, 3!

Maintaining proper water chemistry requires consistent testing. Invest in a simple test kit that allows you to measure sanitizer level, pH, and sometimes total alkalinity. Most hot tub stores offer test strips or digital testers. Follow the instructions provided to ensure accurate readings. And be sure to check out our video below on How to Test & Read pH, Alkalinity, & Chlorine.

Taking Action: Balancing Your Water

Once you have your test results, it’s time to adjust the chemical levels as needed. Here’s a general guideline:

For Low Sanitizer Level: Add the appropriate chlorine or bromine granules or tablets following the manufacturer’s instructions.
For High Sanitizer Level: Allow the hot tub to circulate for a few hours, letting the sanitizer residual deplete naturally. Avoid adding shock or additional chemicals during this time.
For Low pH: Increase pH with a pH increaser according to package directions.
For High pH: Reduce pH with a pH decreaser following the manufacturer’s recommendations.
For Low Total Alkalinity: Raise TA with a recommended alkalinity increaser.
For High Total Alkalinity: Unfortunately, there’s no easy fix for excessively high TA. In some cases, a partial water change might be necessary.
For Calcium Hardness: If you have soft water, consider using a calcium booster to increase levels, or calcium increaser to raise hardness.

Freshwater IQ: A Technological Twist on Water Care

For those seeking a more automated approach to hot tub water care, the FreshWater IQ system offers a novel solution. This in-line, self-monitoring salt system tells you what is needed to maintain clean water. Here’s a closer look at Freshwater IQ:

Smart Monitoring: The accompanying sensor continuously monitors water chemistry and notifies you of any imbalances.
Reduced Chemical Usage: FreshWater IQ can significantly reduce the need for harsh chemicals, by having a more accurate account of what you need to add making it an attractive option for those with sensitive skin or environmentally conscious preferences.

Important Considerations

Freshwater IQ is not a standalone solution. It still requires regular testing and occasional adjustments to maintain optimal water balance.
The effectiveness of Freshwater IQ can be influenced by factors like bather load and frequency of use.

The Final Splash: Maintaining a Sparkling Oasis

By understanding hot tub water chemistry and implementing a regular testing and maintenance routine, you can ensure your hot tub remains a haven of relaxation and rejuvenation. Remember these key takeaways:

Maintain proper sanitizer level, pH, total alkalinity

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Hot Tub Maintenance 101: A Comprehensive Guide for New Owners

Hot Tubs > Hot Tub Buyer’s Guide > Hot Tub Maintenance 101: A Comprehensive Guide for New Owners

Owning a hot tub is like having your own personal oasis at home, offering relaxation, stress relief, and countless opportunities to soak away the day’s worries. But just like any investment, proper care is essential to ensure your hot tub delivers optimal performance and years of enjoyment.

For new hot tub owners, navigating the world of maintenance might seem daunting. Fear not! This guide equips you with the essential knowledge to maintain your hot tub’s peak performance, ensuring blissful soaks for years to come.

Water Chemistry

Think of your hot tub’s water as a delicate ecosystem. Proper water balance prevents corrosion and scale buildup—and keeps the water comfortable for soaking.

Here are the key players:

pH: This measures the water’s acidity/alkalinity. Aim for a range of 7.2-7.8. Imbalances can irritate skin, damage equipment, and hinder sanitation.
Sanitizer: Chlorine, bromine, salt, or ozone keep your water free from bacteria and algae. Follow usage instructions based on your chosen sanitizer.
Alkalinity: This buffers pH fluctuations. Maintain a range of 80-120 ppm for optimal performance.

Testing and Balancing:

Test regularly: Use a test kit or dipsticks to check pH, sanitizer levels, and alkalinity at least twice a week, more often with frequent use.
Adjust cautiously: Make small adjustments based on your test results. Adding too much chemical disrupts the balance.
Seek professional help: If maintaining balance seems overwhelming, consider consulting a pool and spa professional for guidance.

Sanitizing

Choosing the right sanitizer and maintaining proper levels is crucial to keeping your hot tub clean and safe. Here’s a breakdown of the most common options:

Chlorine: The most popular option, effective and affordable. Requires regular monitoring and adjustment.
Bromine: More gentle on skin and eyes, lasts longer than chlorine. Can be slightly more expensive.
Ozone: Environmentally friendly option, requires additional equipment. Less effective against some contaminants.
Salt: Enjoy better water quality with less maintenance. Avoids much of the harsh side effects of chemical-based water care.

Sanitation Tips:

Shock regularly: Regularly adding a shock treatment (based on your sanitizer) helps break down contaminants and prevent biofilm buildup.
Maintain proper sanitizer level: Consistently monitor and adjust the sanitizer level as per your chosen method.
Rinse after use: After each use, briefly run the jets to flush out any debris.
Clean jets & surfaces: Regularly clean the jets and other surfaces with a dedicated cleaner to prevent scaling and buildup.
Change filter regularly: Replace the filter as per the manufacturer’s instructions to maintain optimal filtration and sanitation.

Filter

Clean filters are essential for maintaining water clarity and circulation in your hot tub, trapping dirt, debris, and impurities before they can wreak havoc on your water. Follow these steps to keep your filter working hard.

Rinse: Remove and rinse the filter with clean water once a week.
Clean deeply: Every 2-4 weeks, soak the filter in a specialized cleaner based on your sanitizer type.
Replace regularly: Follow the manufacturer’s recommendations for filter replacement, typically every 3-6 months.

Jets

The jets are responsible for those blissful massaging bubbles. Keep them happy and functional with these tips:

Rinse after use: Briefly run the jets after each soak to clear debris.
Clean occasionally: Use a jet cleaner according to the manufacturer’s instructions to remove buildup.
Check pressure: If the jets seem weak, consult your manual or a professional for troubleshooting.

Surface

Regularly clean the interior and exterior surfaces of your hot tub to maintain its aesthetic appeal and prevent staining or discoloration.

Use a mild, non-abrasive cleaner to remove dirt, oils, and other residues from the shell and cover.
Avoid using harsh chemicals or abrasive tools that can damage the surface of the hot tub.

Cover

The hot tub cover plays a critical role in conserving heat, reducing energy costs, and keeping debris out of the water.

Regularly clean the cover with a vinyl cleaner and condition it to maintain its integrity and prolong its lifespan.
Ensure that the cover is properly fitted and securely fastened when not in use to prevent heat loss and damage from harsh weather conditions.

Routine Checks

Perform routine inspections of your hot tub to identify any potential issues before they escalate.

Check for leaks, loose fittings, and unusual noises during operation.
Address any issues promptly to prevent further damage and ensure continued enjoyment of your hot tub.

Winterization

While it may not be a routine part of day-to-day maintenance like water testing or filter cleaning, proper winterization is an important part of maintaining your hot tub. Failing to winterize your hot tub can result in costly damage to plumbing and equipment.

Drain and Refill

Aim to drain and refill your hot tub every 3-4 months, or as recommended by the manufacturer. Regular draining helps to prevent the buildup of dissolved solids, oils, and other contaminants in the water.

The Bottom Line

Maintaining your hot tub doesn’t have to be a chore. By incorporating these simple steps into your routine, you can ensure your hot tub delivers optimal performance, sparkling water, and endless relaxation for years to come. Not a DIYer? Check out Mainely Tubs water care services!

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What Are the Benefits of Salt Water Hot Tubs?

Hot Tubs > Hot Tub Buyer’s Guide > What Are the Benefits of Salt Water Hot Tubs?

Not only are salt water hot tubs incredibly restorative and rejuvenating, they are an ideal solution for people that are sensitive to chemical products used in traditional hot tubs. Plus, they’re great for people that want to spend more time enjoying their tubs and less time maintaining them. In this article, we will discuss everything you need to know about these unique hot tubs!

What Hot Tub Water Treatment System Will Work Best for Me?

Before we get into salt water tubs more specifically, here are the most common ways to maintain spa water:

Chlorine

A chlorine formula (especially formulated for hot tubs) helps cleanse impurities from the water. Chlorine oxidizes contaminants, invading them and destroying them from the inside out. As it works, the chlorine dissipates and turns into a waste product called chloramines. These remnants are responsible for the “stinging and drying” reputation chlorine has and reduces the sanitizer’s effectiveness. Chlorine must be added on a regular basis to keep chloramines at bay.

Bromine

As a popular choice for hot tubs, this chemical ionizes contaminants, forcing apart their chemical bonds. A good amount of it remains active and working, even after combining with contaminants. Bromine also produces a waste product called bromamines that are not as noxious as chloramines, but they too still reduce the effectiveness of the bromine in your hot tub, requiring regular water care maintenance.

Chlorine vs. Bromine at a Quick Glance

Effectiveness: Chlorine kills contaminants more quickly than bromine does. However, bromine has a lower pH than chlorine, so it can help keep your overall water chemistry more balanced, which means less adjusting and maintenance for you!
Stability: Chlorine dissipates more quickly than bromine, so chlorine needs to be replaced more often. Bromine kills bacteria in your spa for a longer period of time than chlorine, but it’s important to note that ultraviolet (UV) light can destroy bromine faster than chlorine, so be sure to use your hot tub cover for outdoor spas.
Your health: Chlorine can be harsher on the skin, hair and eyes than bromine, but bromine can be a bit more difficult to wash off. If you have sensitive skin or have respiratory issues, bromine will be a better choice than chlorine. Bromine, however, has a distinctive “aroma” that many hot tub users find distasteful.

Salt Water Sanitization

These systems automatically generate natural chlorine sanitizer from salt added to the water. This system allows you to add fewer bottled products to the water and enjoy better water quality with less maintenance, and avoids much of the harsh side effects of chemical-based water care. In addition, the water has a much softer feel, and the skin-drying characteristics of manufactured chlorine are eliminated.

Ozone System/Ozonator

What is ozone?

The ozone works to breakdown radical contaminants in your hot tub water such as soap, body lotion, and oil. The best way to make your tub is a safe place is to always shower BEFORE you get in your hot tub!

What is an ozonator for a hot tub?

An ozonator is an electrically-powered device that helps reduce the need for chlorine by generating a high concentration of ozone that thoroughly cleans spa water on contact, and this water system is known by many different names depending on the brand. An ozonator works in conjunction with the chosen hot tub sanitizer system, whether it’s salt water based, chlorine based, or a bromine based hot tub system. Ozonators work by splitting oxygen atoms that collide and create ozone.

The benefits of ozonators: It is an assistant disinfectant.
The disadvantages of ozonators: It can reduce the life of your hot tub cover and it requires additional electricity to run beyond your hot tubs energy usage, especially since most ozonator manufacturers recommend that you run your ozonator as much as 24 hours a day for best results. And, due to ozone’s very short half-life in hot water, it cannot do the job of sanitizing spa water all by itself.

Why Should I Consider a Salt Water Hot Tub?

You’ve likely heard about the healing powers of natural hot springs, waters that draw their heat from beneath the earth’s crust and provide their own natural cleansing and soothing properties. Since a natural hot spring is likely not close by, salt water hot tubs let you create this mineral spring oasis at home.

Have you ever taken an Epsom Salt bath? If you have, you know right away how effective these baths are for relaxing the body and relieving muscle tightness. This is also the same effect with a salt water hot tub, with the addition of powerful jets for a deep massage from your upper back to the soles of your feet!

In hot salt water, the water is denser than fresh water, making you more buoyant which further helps loosen muscles. Additionally, the National Strength and Conditioning Association reports that swelling and edema can be treated with hot and salt water therapy. How? Since salt water has a higher solute concentration than body fluids, the hot salt water can help open pores and pull fluids out of the skin caused from backup in swollen areas.

How Does Salt Water Work Compared to Chlorine and Other Systems?

Is It as Effective? Better?

Salt water is its own natural sanitizer since it is a natural inhibitor of bacteria, meaning it needs less additives in the water, such as added chlorine and bromine. Salt water is gentle on the eyes, nose and skin, especially since salt is actually a common skin-softening ingredient in skin products. And, without the skin irritation or the smell associated with chlorine, the hot water soak can be much more enjoyable!

Salt water hot tubs are also easier to maintain than chlorine- and bromine- based systems. The scientific explanation is that, in salt water hot tubs, a chemical reaction produces small amounts of natural chlorine molecules. These molecules neutralize contaminants before being recycled back into the system as sodium, rather than as chloramines (which produce a strong chlorine smell and can potentially irritate skin and eyes). With just a little salt in your spa water, the system automatically generates chlorine, so you’ll spend less time measuring and adding chemicals. To further enhance hassle-free water care maintenance, advanced spas let you monitor the sanitizing system via an intuitive control panel removing any guesswork about what’s needed.

As an environmental bonus to your minimal maintenance schedule, salt water hot tubs allow you to conserve water by reducing spa drain and refills to potentially once a year, where standard hot tubs need to be drained/refilled 3-4 times a year.

Lastly, with a saltwater hot tub, you will purchase less water-sanitizing chemicals throughout the year as compared to a standard hot tub water care system, which helps offset the up front cost of the salt water system.

Is The Salt Water Cloudier or Clearer Than Other Hot Tub Water Treatment Systems?

With fewer additives and less chemicals, the spa water stays cleaner longer with a salt water hot tub! The small amount of chlorine regularly produced by the system is enough to keep your water quality clean and clear and always ready for a relaxing soak. As mentioned earlier, you will achieve clear water with a salt water tub with much less maintenance than a chemically treated tub, not to mention you should only need to drain/refill your salt water hot tub once a year!

If your water is cloudy, and it’s been less than 12 months, it’s good to do some investigating:

How are the filters looking; do they need to be cleaned?
Have you had a high volume of bathers for consecutive months that are causing a spike in excessive oils and/or organic matter?
Is the tub fully up to date on water care maintenance?

If you can’t pinpoint the problem, call your hot tub retailer and troubleshoot the issue to find the solution, but as a general rule salt water tubs should be much easier to maintain clear water than chemically treated tubs!

Is a Salt Water Hot Tub System Healthier for Me and My Family?

If your family is sensitive to chemically treated tubs, then a salt water hot tub will be a better choice for your household. As mentioned before, some chemical-based water quality care systems can feel harsh to the skin, have a stronger smell, and irritate the eyes. Salt water tubs, in comparison, have such a minimal release of chlorine from a salt water system that you won’t be able to smell or otherwise detect it.

And with less chemical irritants, you’ll be able to comfortably use your tub as often as you want.

While it’s certainly a matter of preference and personal sensitivity to chemicals, salt water tubs are universally gentler for your family. And with less time maintaining your tub, you’ll have a lot more quality family time to enjoy this new hot tub!

What Is the Initial and Ongoing Cost of a Salt Water System Compared to a Chemically Treated Hot Tub?

As a general blanket statement, a salt water system will cost you more initially than a chemical water system due to its technological advancements, functionality, and improved overall spa experience. In terms of ongoing maintenance, a salt water hot tub will be easier and more cost-effective to own than a chemically treated tub.

However, the exact price of the water system is dependent on the make and model of your desired hot tub. The best way to determine the cost comparisons between a salt water system and a chemically treated system is to visit your hot tub retailer and talk it through.

How Easy Is a Salt Water Hot Tub to Maintain Compared to a Non-Salt Hot Tub?

When it comes to salt water vs. chlorine water treatment for hot tubs, salt water hot tubs win hands down! With less water care maintenance, less required products, and once-a-year draining/refilling your hot tub, a salt water tub is much easier to maintain than a traditional hot tub.

Can Someone Help Me Decide Between a Salt Water Hot Tub and a Traditional Hot Tub Water Care System?

If you still aren’t sure what kind of hot tub is right for you, come chat with us. Here at Mainely Tubs, we can help walk you through the differences of each water quality system, explore costs against the hot tub models you are considering, and talk about ongoing maintenance.

We also suggest reading our convenient online Hot Tub Buyer’s Guide or simply download our “Ultimate Hot Tub Buyer’s Guide.“ It’s a complete printable reference guide with in-depth insights into everything you need to know about buying and owning a hot tub.

Need additional help? Give us a call, email us, or visit one of our showrooms in Scarborough or Rye. We’re always happy to help you find the hot tub that is just right for you!

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How to Maintain a Hot Tub

Hot Tubs > Hot Tub Buyer’s Guide > How to Maintain a Hot Tub

If you’ve been thinking about becoming a hot tub owner, but don’t think you can handle the maintenance of owning one, you can stop worrying now. With today’s innovative hot tub models and options, it’s easy to maintain your hot tub without spending a lot of your free time doing so. While it does take some work, it pales in comparison to all the relaxing hours you’ll spend soaking blissfully in your tub! In this article, we will break down everything you need to know about how to keep your hot tub in tip top shape.

How Much Maintenance Is a Hot Tub? What Parts Am I Maintaining?

First off, you won’t need to maintain the outside of the hot tub at all! Staining and sealing the wood was a thing of the past with older models. Today’s hot tubs have synthetic wood cabinets that require almost no maintenance at all, and they just need an occasional hose down for easy cleaning.

Hot Tub Water Care: As Little As 15 Minutes Each Week

If the term “balancing the pH” intimidates you, don’t worry! With guidance from your expert hot tub dealer and key products on hand, it’s simple to keep your water balanced, clear, and clean. Hot tub water care is composed of a few steps: balance the water at start-up, make sure there is a certain amount of sanitizer in the spa water before each use, and monitor the levels with a quick spa test strip once a week to ensure it’s all correct. It’s also important to note that your water care requirements will be dependent on the system you choose (chlorine, bromine or salt water sanitization, and the presence of an ozonator). Ask your hot tub retailer about how these systems compare with one another for maintenance requirements.

Hot Tub Filter Care: As Little As 15 Minutes Each Month

Why do you have to clean your spa filters? Because mineral particles or calcification from hard water can clog any water filtration system. Depending on your hot tub, you’ll have between 1 to 5 filters that need to be cleaned with some basic steps:

Rinsing filters: Once a month (there are also many filter sprays)
Deep cleaning filters: Every couple of months, soak them in a bucket with special cleansers.
- Some filters are even dishwasher-safe, making this even easier and faster.
Replacing filters: Filters should be replaced on the requested replacement schedule or as needed, especially if the cleaning is no longer doing the trick. And, if one filter is dirtier than the other filters, it’s probably connected to a separate low speed circulation pump and is doing most of the filtering.

Draining and Refilling the Hot Tub

Draining and filling can be as little as one time each year with a salt water system (3-4 times each year with traditional water care). To ensure your hot tub stays in mint condition, especially if the balanced water isn’t looking as crystal clear, it’s time to roll up your sleeves. It’s important to realize that bacteria can survive in your spa despite the sanitizer you add due to a sticky substance that forms in your hot tub plumbing called biofilm. These bacteria can be host to various illnesses, and the goo inside the lines can’t be removed through normal spa water circulation or regular cleaning.

How to Drain the Hot Tub

Before you drain your spa, flip the hot tub breaker to cut all power and eliminate risk of electrical shock. If your hot tub has a floor drain, simply remove the cap from the drain, attach a garden hose, and open the drain valve OR use a sump pump that will speed up the process (but be sure to shut it off when it stops pumping water!). As a side note, make sure your first double check with your city’s ordinances on hot tub drainage regulations, as some cities require you to drain your hot tub water into the sewer system. This is NOT a storm drain, since that leads to natural bodies of water. If you don’t have sewer access, you can run a hose into the drain of a utility sink or water the lawn or gardens with old spa water once the chemicals have dissipated.

Luckily, when you add a line flush product as the first step of your draining process, the special cleaner breaks down biofilm. Once you’ve added it, let it circulate for a minimum of 20 minutes. (If it’s your first time cleaning your hot tub, but you haven’t been using a line flush, you should allow the line flush product to circulate for a few hours. Just follow product directions). It’s going to look gross while it’s cleaning, but that is the power at work!

How to Clean the Hot Tub

Once the water is gone, it’s time to give the shell (the inner core of the hot tub) a good clean. Be sure to know what products are best for your tub, as it cannot stand up to harsh chemical cleaning products. Hot tub cleaner, diluted white vinegar, or diluted bleach can all be good options depending on your tub, and be sure to use a soft cloth or non-scratch nylon scrubber to remove residue. Don’t forget about getting to those nooks and crannies, a prime hiding spot for possible mildew, algae, or bacteria. Then, rinse really well and drain all this water, and double check that all your jets are open after your cleaning session, so the air won’t be trapped. This is also the perfect time to clean your hot tub cover and any spa pillows. If you decide on a salt water system that extends the spa water life up to 12 months with proper care, you may only need to drain, clean and refill the spa as little as once a year.

How to Refill the Hot Tub

You are almost done! First, perform a quick check: the breaker is off, the drains are closed, and the sump pump is removed. When refilling your hot tub, use a hose filter to reduce impurities such as calcium and copper that may affect your water chemistry and overall spa health. This is a quick fix for higher quality water and reduced staining risk. However, if you’ve had staining problems in the past, it’s worth adding a dose of metal sequestrant during refills. Now, insert your hose into the filter compartment (helping force trapped air in your circulation system), and then begin filling your spa. Do not overfill your tub as it can cause big issues like backflow into your heater. If you overfill it, drain the excess right away. Finally, turn your spa breaker back on.

How to Restart the Hot Tub

Now that your spa breaker is back on, and the water is filled, let it reheat back up! Allow the water to circulate and heat up to at least 80°F (27°C). Be sure to turn off air valves if you have them, so they don’t disrupt chemical distribution. Test the water and adjust pH, alkalinity, and calcium hardness if necessary. Then, cover the spa for 24 hours to let the water warm up and the chemicals circulate. Finally, retest the water when the spa reaches 100°F (38°C). You likely won’t need to adjust anything, but this final step ensures the water is balanced and you are ready to soak!

How Do You Winterize a Hot Tub?

Having a hot tub in a colder climate during the winter is an amazing luxury to enjoy, but it also has some considerations depending on your plans. Before we get into the how of winterizing a hot tub, let’s quickly determine if you need to!

If you are spending most of the winter at home:

Keep your hot tub running! Winterizing your hot tub can be complicated, so if you plan to enjoy it, keep it filled, test and treat your water on schedule, and keep it ready for you!

If you are taking a short (up to two consecutive weeks) vacation during winter:

Good for you! Before you head out on vacation, make sure the filters are clean, the water is freshly sanitized, and you secure your tub with a childproof cover. To save energy, you can also lower the spa temperature by five or ten degrees but make sure it stays warm since freezing damage can be extremely detrimental to your hot tub.

If you are going to be a snow bird this winter and heading out the entire season:

You will absolutely need to winterize your tub, and since this is an extensive process that requires precision, it’s ideal to seek the help of a professional service to do this right. In fact, the most damage that occurs to hot tub spas is caused by improper winterization. Damage from freezing is very expensive to repair, so if you have any doubts, contact a local spa professional to do this for you, so you can focus on your vacation!

The process is extensive but as a very quick overview it involves:

Planning ahead with an early start; the water must be cleaned before draining and the temperature must be above 40 degrees Fahrenheit to do so.
Turning off the circuit breaker for the spa’s electrical line, and if possible, unplug the unit.
Draining: Once the power is turned off, the tub needs to be drained and dried thoroughly so no remnant water can freeze. This will require wet-dry vacuuming and careful towel drying. All filter cartridges also need to be removed, cleaned, and stored indoors along with any wireless panel remotes.
Turn off your spa heater.
Open drain plugs and remove water. The same goes for blow jets since water can get trapped in your jet plumbing and damage your hot tub if it freezes. Make sure this is drained completely, either manually or by a shop vac.
Adding Propylene Glycol antifreeze into the specified openings where water may enter or leave your spa (jets, filter standpipes, etc). to keep your spa’s pipes from freezing. For safety, never use an antifreeze containing Ethylene Glycol (the kind you use in your car) in your hot tub since it’s toxic.
Cover your tub and put plywood boards on top of the cover to protect from snow and ice damage, finishing it with a plastic tarp on top of everything.
On portable, cabinetized spas, close and secure the equipment hatch door. Often, creatures will try to nest inside spa cabinets over the winter and cause expensive damage with wire-chewing!
When you get back, all traces of the antifreeze must be removed, and then the tub should be properly refilled.

Again, this is a very specific process susceptible to human error, and it’s a great idea to get help from professionals if you will be winterizing your tub this season!

And, a few other quick tips for keeping your spa perfect in the winter:

Consider a Winter Blanket: Keep your spa hot year-round, even in areas with freezing temperatures, to maximize energy efficiency.
Check for wear and tear, as well as ensuring the seal is tight, on a regular basis.
Remove snow and ice: Routinely brush snow off of your spa cover and splash warm water on ice rather than prying it off.

How Do You Keep Hot Tub Water Clear?

Talk to your hot tub professional about what products are best for your specific hot tub! If you have cloudy water, probable causes may include:

Dirty filters
Excessive oils or organic matter
Improper sanitizing
Suspended particles or organic matter
Overused or old water
Metals in your water. If you’re not using a hose filter when you fill your tub, metal contaminants in your hard water could be making it cloudy.
Nature: tree seed pods, dead leaves, grass clippings, and all the other natural matter can get into the hot tub. Not only may sanitizers try to attack these instead of bacteria, this nature debris can contribute to clogging.
Poor water chemistry
Insufficient sanitizer levels, especially if you have had many spa bathers! Since humans have quite a bit of elements on our skin, a shower before a soak is always a must to maintaining a clean tub!

With the right maintenance and products, your water can stay clear and balanced for all of your hot tub soaks!

OK, I Can Handle Hot Tub Maintenance! Now What?

At Mainely Tubs, we are happy to help you hit the ground running! Whether you want to discuss this maintenance more in depth, get a feel for hot tub options and costs, or get ready to make a purchase, we are here for whatever stage you are in the process.

We suggest reading our convenient online Hot Tub Buyer’s Guide or simply download our “Ultimate Hot Tub Buyer’s Guide.“ It’s a complete printable reference guide with in-depth insights into everything you need to know about buying and owning a hot tub.

Need additional help? Give us a call, email us, or pop by our Scarborough or Rye location. At Mainely Tubs, we’re here to help you learn more about all things hot tubs!

About Mainely Tubs in Maine, New Hampshire, Massachusetts, and Rhode Island

About Us

Download the Ultimate Hot Tub Buyer’s Guide

Here’s Everything You Need to Know!

We’ve pulled together everything you need to know about buying a hot tub. Learn about everything from hot tub functions & features to hot tub maintenance & costs all in one convenient guide.

See the guide

Salt Water Hot Tub Pros and Cons: A Complete Buyer’s Guide to Making the Right Investment

Key Advantages and Limitations of Salt Water Hot Tubs

Health and Comfort Benefits

Maintenance and Water Care Expectations

Salt Cell and Cartridge Replacement Realities

Upfront Investment and Ongoing Costs

Guidance for Prospective Owners

Ideal Users and Key Considerations

Pros & Cons of a Salt Water System at a Glance

The Pros: What Makes Salt Water Systems Worth Considering

Softer, More Comfortable Water

Fewer Manual Chemical Additions

More Stable Water Chemistry

Less Chemical Smell

Lower Chemical Handling

The Cons: What You Should Know Before You Buy

Higher Upfront Cost

Salt Cell or Cartridge Replacement

pH Management Still Required

Slightly More Complex Equipment

Learning Curve for New Owners

At a Glance: Salt Water vs. Traditional Chlorine

Final Considerations: Who Is a Salt Water Hot Tub Best For?

Salt Water Is Likely the Right Choice If You…

A Traditional Chlorine Spa May Be a Better Fit If You…

What to Watch for When Buying

Frequently Asked Questions

Ready to Explore Salt Water Hot Tubs in Person?

About Mainely Tubs in Maine, New Hampshire, Massachusetts, and Rhode Island

Related Hot Tub Articles

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Salt Water Hot Tub Maintenance: Your Complete Care Guide for Crystal Clear Relaxation

Essential Weekly and Monthly Salt Water Hot Tub Tasks

Testing and Adjusting Water Chemistry

Maintaining Filters and the Salt Cell

Cleaning Surfaces and Managing Water Level

Routine Sanitizing and Shock Treatments

Quarterly, Seasonal, and Professional Service Considerations

When and How to Drain and Refill

Seasonal Maintenance Tips

Deciding When to Call a Professional

Keeping a Long-Term Maintenance Checklist

Your Salt Water Hot Tub Maintenance Checklist

Weekly (2–3x per week)

Monthly

Annually

Seasonal/ As Needed

Frequently Asked Questions

Questions About Your Salt Water Hot Tub?

About Mainely Tubs in Maine, New Hampshire, Massachusetts, and Rhode Island

Related Hot Tub Articles

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Stop Dreading Hot Tub Maintenance

1. Gentler Water Without the Fuss

2. A Helping Hand for Clean Water

3. Even Easier Water Maintenance

4. Quiet, Continuous Care

5. Water-Care Plans & Hybrid Support

How to Choose a Low-Maintenance Hot Tub at Mainely Tubs

What “Self-Cleaning” Actually Means

About Mainely Tubs in Maine, New Hampshire, Massachusetts, and Rhode Island

Related Hot Tub Articles

Download the Ultimate Hot Tub Buyer’s Guide

Here’s Everything You Need to Know!

Keeping Your Hot Tub Crystal Clear

Understanding Your Hot Tub Filter

The Cleaning Cavalry: Tools and Supplies

Mission: Clean Filter! A Step-by-Step Guide

Prolonging the Life of Your Filter

About Mainely Tubs in Maine, New Hampshire, Massachusetts, and Rhode Island

Related Hot Tub Articles

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Hot Tub Water Care

The Balancing Act: Essential Water Chemistry

Testing, Testing, 1, 2, 3!

Taking Action: Balancing Your Water

Freshwater IQ: A Technological Twist on Water Care

Weekly
(2–3x per week)