The difference between a traditional spa and a saltwater hot tub is something you can feel the moment you get in. If you’ve ever stepped out of a chlorinated pool with dry, itchy skin and red eyes, you know the effects of chemical byproducts called chloramines. A saltwater system is a game-changer because it produces pure chlorine steadily and automatically, preventing those irritants from building up. This means the water is incredibly gentle, leaving your skin feeling soft and moisturized instead of stripped and dry. It’s a more comfortable and enjoyable experience that transforms your backyard soak into a true spa-like escape.
Key Takeaways
- Enjoy Softer Water with Less Irritation: Saltwater systems create their own pure chlorine from a small amount of salt, resulting in a steady, gentle sanitizer. This automated process produces water that feels silky and prevents the harsh chemical smell and skin irritation common in traditional tubs.
- Swap Daily Dosing for Simple Weekly Checks: A saltwater spa replaces the need for constant chemical additions with a simple weekly routine of testing water balance. While not maintenance-free, your main long-term task is simply cleaning and eventually replacing the salt cell every few years.
- Choose a Spa That’s Built for Salt: To protect your investment, select a hot tub with a factory-integrated salt system. These models use corrosion-resistant components and are covered by a manufacturer’s warranty, preventing damage that can occur when adding an aftermarket system to a standard spa.
How Are Saltwater Hot Tubs Different?
When you hear “saltwater hot tub,” you might picture a mini-ocean in your backyard, but the reality is much more sophisticated—and a lot less salty. A saltwater hot tub isn’t filled with seawater; instead, it uses a specialized system to turn a small amount of salt into a powerful, natural sanitizer. This technology changes the entire experience, from how the water feels on your skin to the time you spend on maintenance.
The core difference lies in how the water stays clean. Instead of manually adding chlorine pucks or granules every few days, a saltwater system generates its own sanitizer automatically. This creates a more stable, comfortable, and hands-off soaking environment. It’s a modern approach to water care that focuses on providing a gentler, more luxurious experience with fewer chemicals and less hassle. For anyone who values wellness and wants to spend more time relaxing and less time on upkeep, this is a game-changer. Let’s break down exactly how it works and what sets it apart from a traditional hot tub.
How a saltwater system works
A saltwater system is a small but mighty piece of technology. It starts with adding special, pure salt directly to your hot tub water—far less than you’d find in the ocean, so you’ll barely taste it. Inside the spa’s plumbing is a salt cell, often a titanium cartridge with electrodes. As the salted water flows past these electrodes, a gentle electrical charge creates a chemical reaction that converts the salt (sodium chloride) into pure chlorine.
This process happens automatically, generating a slow, steady stream of sanitizer that keeps your water consistently clean. Systems like the FreshWater® Salt System from Hot Spring Spas manage this process intelligently, ensuring you always have the right amount of chlorine without the peaks and valleys of manual dosing. It’s a simple, effective way to maintain pristine water with minimal effort.
Natural chlorine vs. traditional chemicals
One of the biggest points of confusion is that saltwater hot tubs are not chlorine-free. They are chlorine-sanitized, but the key is how that chlorine is produced and what it lacks. The system generates pure chlorine from salt, which is very different from the chlorine you buy in a store. Packaged chlorine often contains binders and stabilizers that can build up in the water over time.
More importantly, this process significantly reduces the formation of chloramines. Chloramines are the irritating chemical byproducts created when chlorine reacts with sweat, oils, and lotions in the water. They’re what cause that harsh “chlorine smell,” dry skin, and red eyes. Because a saltwater system produces chlorine steadily, it neutralizes contaminants before chloramines can form, leaving you with fresh, clean water that’s much gentler on your body.
Saltwater vs. traditional: A quick comparison
So, how do the two stack up side-by-side? With a traditional hot tub, you are the water management system. You have to manually test and add chlorine or bromine on a regular basis to keep the water sanitized. A saltwater hot tub, on the other hand, automates the sanitizing process for you.
The difference is noticeable the moment you get in. The water in a saltwater spa feels softer and silkier, which many people find more relaxing and luxurious. While you’ll spend less on daily chemicals, the initial investment for a saltwater system is higher, and the salt cell will need to be replaced every few years. However, many owners find the superior water quality and reduced maintenance are well worth the trade-off. You can explore a variety of hot tub models to see which system fits your lifestyle.
Are Saltwater Hot Tubs Better for Your Health?
When you invest in a hot tub, you’re investing in your well-being. The warm, massaging water offers proven benefits for stress, muscle aches, and sleep. But a saltwater hot tub takes that therapeutic experience to the next level. Instead of adding bottled chlorine directly, a saltwater system uses a gentle process to create a pure, stable sanitizer from natural salt.
The result is water that feels noticeably softer, silkier, and more natural against your skin. For anyone focused on creating a true wellness sanctuary at home, the difference is significant. The cleaner feel, lack of harsh chemical odors, and gentler impact on your body all contribute to a more restorative and healthful soak. It’s less about just cleaning the water and more about curating a superior hydrotherapy experience from the ground up. Many of our clients find that this refined approach makes them use their Hot Spring® Spas more consistently, which is the real key to unlocking long-term health benefits.
Softer on your skin and eyes
If you’ve ever stepped out of a traditionally chlorinated pool or hot tub with dry, itchy skin and red eyes, you’ve experienced the effects of chloramines. These are the chemical byproducts that form when chlorine reacts with contaminants in the water, and they’re responsible for that classic “pool smell” and irritation. Saltwater hot tubs are a game-changer for anyone with sensitive skin because they produce pure chlorine steadily and automatically, preventing chloramines from building up. This means the water is incredibly gentle, leaving your skin feeling soft and moisturized instead of stripped and dry. It’s a difference you can feel immediately, making every soak more comfortable and enjoyable.
Deeper muscle relaxation and recovery
The water in a saltwater hot tub doesn’t just feel better—it can also help your body relax more completely. The salt content increases the water’s buoyancy, creating a feeling of weightlessness that takes pressure off tired joints and aching muscles. This enhanced buoyancy allows your body to release tension more effectively than it would in plain water. For those who use their hot tub for post-workout recovery or to manage chronic pain, this is a major advantage. The gentle support helps ease soreness and stiffness, allowing the massaging jets to work more deeply and promote faster muscle recovery.
A better way to reduce stress
Your backyard hot tub should be a peaceful escape, and a saltwater system helps create the perfect atmosphere for mental relaxation. Many people describe the water as feeling silky and smooth, much like the ocean. This luxurious sensation, combined with the absence of a harsh chemical odor, transforms your soak into a true spa-like experience. It’s easier to clear your mind and let go of the day’s stress when your senses are soothed. This calming environment makes your hot tub the ideal place to practice mindfulness, connect with a partner, or simply enjoy a few quiet moments to yourself.
How it can improve your sleep
A warm soak before bed is a well-known strategy for improving sleep, and a saltwater hot tub can make this routine even more effective. Soaking in warm water raises your body temperature; when you get out, the subsequent cool-down period signals to your brain that it’s time for sleep. Because saltwater is so gentle on your skin and eyes, it makes this nightly ritual more pleasant and sustainable. You can fully relax without worrying about skin irritation, allowing your muscles to unwind and your mind to quiet down, paving the way for a deeper, more restful night’s sleep.
Natural detoxification benefits
The combination of warm water and salt can also support your body’s natural detoxification processes. The heat from the water helps to increase your circulation, while the buoyancy eases the strain on your body. This improved blood flow can help your system more efficiently flush out metabolic waste and deliver oxygen to your cells. While it’s not a magic cure, incorporating regular soaks into your wellness routine can be a great way to support your body’s ability to cleanse itself. It’s a gentle, holistic approach that complements other healthy habits, like staying hydrated and eating well, to help you feel your best.
What’s the Real Cost of a Saltwater Hot Tub?
When you’re thinking about adding a hot tub to your backyard, the price tag is obviously a big part of the conversation. But the total cost of ownership goes beyond the initial purchase. It’s an investment in your home, your health, and your lifestyle, so it’s important to understand the full picture—from the day it’s delivered to the years of enjoyment ahead. A saltwater hot tub has a unique cost structure compared to traditional chlorine models, with different considerations for the initial price, installation, daily energy use, and long-term upkeep.
Understanding these costs helps you budget accurately and see the incredible long-term value a saltwater system provides. While the upfront investment can be higher, many owners find that the superior water quality, reduced chemical handling, and gentler soaking experience are well worth it. Let’s break down what you can realistically expect to spend at each stage, so you can make a confident and informed decision for your home. We’ll cover everything from the purchase price to the cost of replacing key components down the road.
Breaking down the initial investment
The initial purchase price for a quality saltwater hot tub typically falls between $16,500 and $24,000. While some basic models can start lower and luxury custom builds can go higher, this range reflects the high-performance spas most homeowners choose. The final cost depends on factors like size, the number of jets, advanced features like custom lighting and audio systems, and the brand’s reputation for quality and durability. At Fun Outdoor Living, we offer a curated selection of top-tier spas, and our team can help you explore hot tub financing options to find a payment plan that fits your budget comfortably.
What to expect for installation
Proper installation is key to ensuring your hot tub runs safely and efficiently for years. This isn’t a DIY project. You’ll need a solid, level foundation—like a concrete pad or a properly reinforced deck—to support the spa’s weight. You will also need a licensed electrician to run the dedicated electrical circuit required for most models. The great news is that you don’t have to manage this process alone. Our in-house construction and delivery teams coordinate the entire setup, from site preparation advice to final placement, making the experience seamless. Our pre-delivery checklist walks you through everything you need to have ready for a smooth installation day.
Day-to-day operating costs
Once your hot tub is installed, your main ongoing expense will be electricity. On average, you can expect your energy bill to increase by about $20 to $100 per month. This range depends on your local electricity rates, the climate here in the Carolinas, how often you use the spa, and, most importantly, the hot tub’s energy efficiency. High-quality models from brands like Hot Spring® Spas are engineered with superior insulation and energy-efficient components that keep operating costs on the lower end of that spectrum. A well-made cover is also essential for trapping heat and reducing energy consumption.
Long-term maintenance expenses
While you’ll spend less on daily chemicals, saltwater hot tubs do have specific long-term maintenance costs. Annual upkeep can range from $500 to $1,000, which includes salt, balancing chemicals, and filter cleanings. The most significant long-term expense is replacing the salt cell, the component that generates the chlorine. A salt cell typically lasts three to five years and costs between $200 and $400 to replace. To make upkeep completely hands-off, many of our customers opt for one of our Spa Valet service plans, where our technicians handle all the routine care for you.
Where you’ll see the savings
So, where does a saltwater system pay off? The savings are found in both your wallet and your well-being. You’ll buy far less sanitizer over the life of the spa, as the system generates its own. You’ll also perform fewer water changes, which saves time and reduces your water bill. The biggest return, however, is in the experience itself. The soft, silky water is gentler on your skin and eyes, without the harsh chemical odor of traditional tubs. Many homeowners find the benefits of a saltwater system and the reduced daily maintenance create a more relaxing and therapeutic experience that’s simply a better value.
Who Makes the Best Saltwater Hot Tubs?
When you start shopping for a saltwater hot tub, you’ll quickly notice that many top-tier brands offer saltwater-compatible models. But there’s a difference between a spa that can have a salt system added and one that was designed with an integrated system from the ground up. The “best” brand for you will come down to your priorities—whether that’s budget, advanced features, or a specific type of hydrotherapy.
Some manufacturers, like Hot Spring Spas, have perfected their own proprietary systems that work seamlessly with their tubs. Others offer high-quality spas that are fully compatible with aftermarket salt systems. As the Carolinas’ premier spa provider, we’ve spent years vetting different brands. We’ve curated a collection based on reliability, ease of use, and long-term customer happiness. Let’s walk through some of the leading names in the industry so you can see how they compare.
Hot Spring Spas
Hot Spring is widely recognized as a leader in saltwater technology, thanks to its exclusive FreshWater® Salt System. This factory-integrated system is incredibly user-friendly, automatically generating the perfect amount of natural chlorine from a small amount of salt. The result is softer, cleaner water that’s gentler on your skin and requires fewer chemicals. For homeowners who want a simple, low-maintenance experience, Hot Spring is tough to beat. Their Beam model, for instance, is often highlighted as the “best salt water model for those on a budget,” delivering luxury features at a more accessible price point. As the exclusive local dealer, we can show you exactly how this system makes ownership a breeze.
Our Fun Outdoor Living Collection
We’ve handpicked a variety of saltwater-ready spas to ensure we have the perfect fit for every backyard and lifestyle. Our collection includes compact luxury models like the Hot Spring Jetsetter LX, which is ideal for smaller spaces but still offers all the powerful features of a large spa. Whether you need a two-person tub for your patio or a spacious model for family gatherings, we have a saltwater option that will work. You can explore our full hot tub gallery to see different sizes and styles. Our goal is to match you with a spa that not only feels amazing but also fits seamlessly into your daily wellness routine.
American Whirlpool
Known for its innovative engineering and energy-efficient designs, American Whirlpool is another excellent choice for a saltwater-ready spa. This brand is a strong contender in the market, focusing on powerful hydrotherapy and performance. Their models feature advanced jet systems, ergonomic seating, and robust construction that stands the test of time. Because they are built with high-quality components, they pair well with modern saltwater systems, giving you a comfortable and reliable soaking experience. We proudly carry American Whirlpool because their commitment to quality construction ensures you get a fantastic return on your wellness investment.
Caldera Spas
Caldera Spas are designed with a focus on pure comfort, relaxation, and wellness. As a sister brand to Hot Spring, they share a deep commitment to quality and often incorporate similar advanced technologies, including saltwater systems. Caldera tubs are known for their deep, comfortable seats and powerful, targeted hydrotherapy jets that can help soothe sore muscles and reduce stress. If your main goal is to create a peaceful backyard retreat for therapeutic soaking, Caldera offers a fantastic range of models that deliver on both performance and tranquility.
Arctic Spas
Arctic Spas are built to withstand harsh climates, which speaks volumes about their durability and insulation. They are a popular choice for saltwater systems, particularly with their Spaboy or Onzen automated systems that help simplify water care. These systems are designed for easy maintenance and create a comfortable, silky soaking experience with minimal effort. For homeowners who prioritize robust construction and straightforward upkeep, an Arctic Spa equipped with one of their salt systems is a very compelling option.
Master Spas
Master Spas has earned a reputation for high-quality American manufacturing and energy-efficient designs. While they are well-known for their swim spas, their hot tub lines also include many models that are compatible with saltwater systems. Customers often choose Master Spas for their durable construction and innovative features, like therapeutic massage jets and beautiful lighting. Their focus on quality ensures that their tubs provide a reliable foundation for a saltwater system, allowing you to enjoy the benefits of softer water in a well-built spa.
Jacuzzi
As the brand that started it all, Jacuzzi is one of the most recognized names in the industry for a reason. They are considered a top-tier brand known for pioneering hydrotherapy technology and creating iconic designs. Many of their modern hot tubs can be equipped with saltwater systems, blending their legendary jet performance with the benefits of salt water. If you’re looking for powerful, targeted massage action from a brand with a long history of innovation, a saltwater-compatible Jacuzzi is a fantastic choice.
Your Saltwater Hot Tub Maintenance Checklist
One of the biggest draws of a saltwater hot tub is the promise of simpler maintenance, and for the most part, that’s true. The system automates chlorine production, which means you can say goodbye to constantly adding sanitizers. But “low maintenance” doesn’t mean “no maintenance.” Think of it less like a daily chore and more like a simple weekly check-in to keep your water feeling silky smooth and your spa running perfectly. A little routine care goes a long way in protecting your investment and ensuring your hot tub is always ready for a relaxing soak.
Following a consistent schedule prevents small issues from becoming bigger problems and keeps your water balanced and inviting. It’s about working smarter, not harder. By staying on top of a few key tasks, you ensure the advanced technology in your spa can do its job effectively, giving you that clean, soft water feel you love without the chemical smell or irritation. Here’s a straightforward checklist to help you master your saltwater spa care without feeling overwhelmed. It’s easier than you think, and our team is always here to help if you have questions.
Your weekly water testing routine
Even though your salt system is handling the chlorine, you’re still the captain of the ship when it comes to overall water balance. You’ll want to get into the habit of testing your water at least once a week with test strips. The two main things to watch are your pH and calcium hardness levels. Keeping these in the right range ensures the salt system works efficiently and prevents potential scale buildup. If you ever get a reading you’re unsure about, just bring a sample to any of our showrooms. We offer a free water analysis and can give you clear, simple advice on what to do next.
How to care for the salt cell
The salt cell is the heart of your system—it’s the component that magically turns salt into chlorine. To keep it working properly, it needs to be cleaned periodically to remove any mineral buildup. Your spa’s control panel will usually let you know when it’s time for a cleaning, which typically involves a simple vinegar soak. Over time, the cell will wear out and need to be replaced. You can expect a salt cell to last about three to five years, depending on use. This is a predictable maintenance cost, not a surprise repair, so you can plan for it well in advance.
Keeping your water chemistry balanced
While your salt system creates a steady, gentle stream of sanitizer, you still need to manage the overall water environment. Think of it this way: the salt system makes the chlorine, but you make sure the water is comfortable and safe. This goes back to your weekly testing routine. When pH is balanced, the chlorine can do its job effectively. Some advanced systems, like the FreshWater® Salt System found in our Hot Spring® Spas, even test the water for you and provide on-screen instructions when adjustments are needed, making the process nearly foolproof.
Tips to prevent corrosion
You may have heard that salt can be corrosive to metal components, and it’s a valid concern. However, this is almost always the result of improperly managed water. High salt levels or consistently unbalanced pH can cause issues, but modern saltwater spas are designed with this in mind, using high-quality, corrosion-resistant materials for heaters and jets. The best way to prevent any problems is to simply follow the manufacturer’s guidelines for salt levels and keep your water chemistry in the recommended range. If you ever have a concern, our certified service technicians are just a call away.
Simple seasonal upkeep
Beyond water chemistry, your saltwater hot tub needs the same basic care as any other spa. This includes cleaning your filters regularly, wiping down the shell at the waterline, and making sure your cover is clean and in good condition. You’ll also need to drain and refill your spa, but one of the perks of a saltwater system is that you can often go much longer between changes—sometimes up to a full year. For homeowners who want a completely hands-off experience, our Spa Valet Plans offer routine care, so your hot tub is always pristine and ready for you to enjoy.
Saltwater Hot Tub Myths vs. Reality
Saltwater hot tubs have a reputation for being the luxurious, hands-off alternative to traditional spas. While they offer some incredible benefits, there’s also a lot of confusing information out there. Let’s clear the air and separate the facts from the fiction so you can decide if a saltwater system is the right fit for your backyard sanctuary.
The “chemical-free” myth
This is probably the biggest misconception. Saltwater hot tubs aren’t chemical-free; they’re actually tiny chlorine factories. Instead of you adding bottled chlorine, a salt cell generator uses a small amount of salt in the water to produce a steady, natural stream of chlorine. The result is water that feels softer and smells better because you avoid the harsh peaks and valleys of manual dosing. So, while you’re not escaping chlorine, you’re getting a much more gentle and stable version of it, which is what Hot Spring® Spas has perfected in their systems.
What maintenance really looks like
While a saltwater system dramatically reduces your daily water care tasks, it isn’t completely maintenance-free. Think of it as “low-maintenance,” not “no-maintenance.” You’ll still need to test your water weekly to ensure everything is balanced and check on your salt cell every few months to make sure it’s clean and working efficiently. The good news is you can say goodbye to constantly adding sanitizer. For homeowners who want a truly hands-off experience, our Spa Valet Plans handle all the routine checks for you, so all you have to do is relax and enjoy the water.
How long do saltwater systems last?
One of the most significant advantages of a saltwater system is water longevity. With proper care, you can often go up to a full year before needing to drain and refill your hot tub. Compare that to traditional tubs, which typically require a water change every three to four months. This saves water, time, and money. The salt cell itself is a replaceable component, much like a filter. Depending on your usage, you can expect a high-quality salt cell to last several years before it needs to be replaced, making it a predictable part of your long-term upkeep.
Will it work in colder climates?
Yes, a saltwater hot tub works beautifully in the Carolinas, but it’s smart to know how temperature can affect it. The salt cell that generates chlorine is most efficient when the water is warm. During a rare cold snap where water temperatures might dip below 60°F (usually only when the spa is not in use or being refilled), the system’s chlorine production can slow down. This is an easy fix. You may just need to supplement with a small amount of sanitizer manually to keep the water pristine until the temperature comes back up. It’s a minor adjustment for year-round enjoyment.
Is a Saltwater Hot Tub Right for You?
Deciding on a saltwater hot tub is an exciting step toward creating your personal wellness retreat. But before you take the plunge, it’s smart to think through a few practical details to ensure it’s the perfect fit for your home and lifestyle. Answering these key questions will help you move forward with confidence, knowing you’ve covered all your bases. From planning the perfect spot in your backyard to understanding the long-term care, here’s what to consider.
Plan your space and location
First, where will your new hot tub live? You’ll need a solid, level surface that can support its weight when filled with water and people—think a concrete slab, reinforced deck, or a professionally installed paver patio. Consider proximity to your house for easy access and privacy from neighbors. It’s also a good time to think about your budget. Saltwater hot tubs can range from around $4,000 to over $20,000, depending on size, features, and brand. Planning your space and budget together ensures you find a model that fits your backyard and your wallet perfectly.
Check your power requirements
A saltwater hot tub is a powerful piece of equipment that requires a dedicated electrical circuit, typically 220-240 volts. This isn’t a DIY project; you’ll need a licensed electrician to run the correct wiring from your home’s main electrical panel to the spa’s location. The cost for this professional work can range from $1,000 to $3,000, depending on the complexity of the job. Factoring this into your initial budget is key to avoiding surprises. Our team can walk you through the specific needs for your chosen model, and our pre-delivery checklist helps you prepare everything in advance.
Consider your local climate
Here in the Carolinas, we enjoy a fairly moderate climate, but it’s still important to know how temperature affects a saltwater system. The salt cell that generates natural chlorine works most efficiently in warmer water. During colder winter months, when the water temperature might dip, the system may produce less chlorine. According to some experts, you might need to supplement with a small amount of sanitizer when temperatures are consistently below 60°F to ensure the water stays clean. This is a simple adjustment and something our water care experts can guide you through during a free water analysis.
Understand the warranty
When investing in a saltwater hot tub, the warranty is your peace of mind. It’s crucial to choose a hot tub that is specifically designed to be compatible with a salt system. Using an aftermarket salt system on a traditional tub can void the warranty and potentially damage components not built to withstand salt. By choosing a trusted brand like Hot Spring, you get a fully integrated system where the spa and the salt system are designed to work together and are covered by a comprehensive manufacturer’s warranty. We only carry brands that stand behind their saltwater technology.
Look for quality materials
A saltwater environment is more corrosive than traditional chlorinated water, so the quality of your hot tub’s components matters—a lot. High-quality saltwater spas are built with materials designed to resist corrosion, including titanium heaters, ceramic-coated parts, and durable, high-grade polymers for jets and plumbing. While you’ll save on day-to-day chemical costs, a lower-quality model could lead to higher repair costs for parts like the salt cell down the road. Investing in a well-made spa from a reputable manufacturer ensures your hot tub will provide relaxation and wellness benefits for years to come, backed by our certified in-house service team.
Related Articles
- Ultimate Hot Tub Buyer’s Guide
- Luxury Vs entry level hot tubs
- How to Choose a Hot Tub that’s Right for You
- Guide To The Best Hot Tub Brands
- Hot Tub Learning Center
Frequently Asked Questions
Is the water in a saltwater hot tub actually salty like the ocean? Not at all. The concentration of salt is extremely low—far less than seawater and actually closer to the salinity of a human tear. You will barely be able to taste it, and it won’t leave your skin feeling dry or crusty. The water feels incredibly soft and silky, which is a big part of the luxurious experience.
How often do I need to add more salt to the water? You will add the required amount of salt when you first fill your hot tub. Because salt doesn’t evaporate with the water, you won’t need to add more on a regular basis. The only time you’ll need to top it off is when you add a significant amount of fresh water after draining some out or due to splash-out over time.
Will the salt damage my hot tub or the area around it? This is a common concern, but spas designed for saltwater systems are built to handle it. Manufacturers like Hot Spring use corrosion-resistant components, such as titanium heaters, to prevent any issues. As long as you maintain proper water balance, the system is perfectly safe for the spa. The low salt concentration also means that any water that splashes out won’t harm your deck, patio, or plants.
Can I convert my current traditional hot tub to a saltwater system? While aftermarket conversion kits are available, it’s generally not the best idea. Using a salt system in a spa that wasn’t designed for it can void your warranty and potentially damage components that aren’t made from salt-resistant materials. For the best performance and peace of mind, it’s always better to invest in a hot tub that was engineered with an integrated saltwater system from the start.
What’s the biggest day-to-day difference I’ll notice compared to a regular hot tub? The most immediate difference is the water quality and the lack of a harsh chemical smell. The water feels noticeably softer and gentler on your skin and eyes. The other major change is your routine. Instead of measuring and adding chlorine every few days, your main task is simply to enjoy the spa while the system handles the sanitizing for you.