11 Salt Water Hot Tubs Pros and Cons to Consider Before You Choose

Are you tired of dealing with harsh chemicals and constant maintenance in your hot tub? If so, you may be interested in the growing trend of saltwater hot tubs. Consider the following:

• Saltwater systems offer a gentler alternative to traditional chlorine systems, making them a great choice for those with sensitive skin or allergies.
• Saltwater hot tubs may require less maintenance, as the system produces its own sanitizer and can reduce the need for added chemicals.
• Some users report feeling more relaxed and refreshed after soaking in a saltwater hot tub, thanks to the potential therapeutic effects of the saltwater.

But before you take the plunge, it’s important to weigh the pros and cons. In this article, we’ll dive into the world of saltwater hot tubs and help you determine if it’s the right choice for your relaxation oasis.

What is a Saltwater Hot Tub?

Are you wondering how a hot tub could possibly run on salt water? It may sound like science fiction, but it’s actually a reality! In a saltwater hot tub, a salt cell uses electrolysis to produce pure chlorine from salt added to the water. This creates a steady supply of chlorine, keeping the water clean and free of bacteria. Contrary to common belief, a salt water hot tub is not chlorine-free—it generates its own chlorine naturally, offering a gentler alternative to manually adding chemical sanitizers.

But wait, it gets even better! The salt used in saltwater hot tubs is sodium chloride, the same type of salt you sprinkle on your food. Not only is it inexpensive, but it also provides a softer, silkier feel to the water compared to traditional chlorine systems.

With reduced chemical usage, saltwater hot tubs are gentler on your skin and eyes, making them a great choice for those with allergies or sensitive skin. It’s no wonder why they’ve become increasingly popular in recent years.

But before you dive into the world of saltwater hot tubs, it’s important to weigh the pros and cons. In the following sections, we’ll explore the ins and outs of saltwater hot tubs, including the benefits they offer and any potential drawbacks.

Salt Water Hot Tubs Pros and Cons

The pros and cons of saltwater hot tubs are critical for anyone considering this option. From enhanced comfort to potential maintenance challenges, understanding these factors will help you decide if a salt water hot tub is the right fit. Below, we’ve compiled comprehensive tables summarizing the benefits and drawbacks, making it easy to compare at a glance.

Pros of Salt Water Hot Tubs

Cons of Salt Water Hot Tubs

These tables highlight the pros and cons of saltwater hot tubs, addressing key questions like what are the negatives of a saltwater hot tub? and is a salt water hot tub better? For a deeper comparison, check out our guide on saltwater vs chlorine hot tubs.

Salt Water Hot Tub vs Regular: Key Differences

When deciding between a salt water hot tub vs regular chlorine-based systems, it’s essential to understand how they differ in function, maintenance, and user experience. A saltwater hot tub uses a salt cell to generate chlorine through electrolysis, providing a steady, natural sanitizer supply. In contrast, a regular hot tub relies on manually added chlorine or bromine, which can feel harsher and require more frequent dosing.

The saltwater vs chlorine hot tub debate often comes down to comfort and convenience. Saltwater systems, or saltwater vs freshwater hot tubs, offer a gentler soak and less manual chemical handling, ideal for those with sensitive skin. However, regular hot tubs are more straightforward to maintain and don’t risk corrosion, making them a reliable choice for budget-conscious buyers or those in colder climates where salt systems may struggle below 60℉ (ConsumerAffairs).

User experience also varies. Saltwater hot tubs provide a buoyant, ocean-like feel, but some users note the need for diligent maintenance to prevent corrosion. Regular hot tubs, while requiring more frequent chemical checks, benefit from simpler upkeep and compatibility with a wider range of models. Explore our article on how to choose a hot tub for more guidance.

Are Saltwater Hot Tubs Worth It?

A common question we hear is, are saltwater hot tubs worth it? The answer depends on your priorities, budget, and lifestyle. Saltwater hot tubs come with a higher initial cost—typically $500 to $5,000 for the system, plus $2,500 to $37,000 for the hot tub itself—making them pricier than regular chlorine systems, which start at $5,000 (Hot Spring Spas). However, they can save money over time by reducing the need for chemical purchases and extending water life up to 12 months.

For those wondering, are salt water hot tubs more expensive?, the upfront investment is indeed higher, but the long-term savings and gentler soaking experience appeal to many. If you value soft, odorless water and have sensitive skin, the benefits may outweigh the costs. However, if you live in a cold climate or prefer simpler maintenance, a regular hot tub might be a better fit. Weighing the pros and cons of saltwater hot tubs against your needs is key to determining their value.

Consider a cost-benefit analysis: the initial setup may cost $1,000 more than a chlorine system, but savings on chemicals (around $100–$200 annually) and fewer water changes (saving $50–$100 per year) can offset this over 5–10 years. Still, factor in salt cell replacements ($200–$400 every 3–5 years) and potential corrosion repairs. For many, the question is a salt water hot tub better? hinges on balancing these costs with the enhanced comfort.

Salt Water Hot Tub Reviews and User Insights

Salt water hot tub reviews offer valuable insights into real-world experiences, helping you decide if this system suits your needs. Users often praise the soft, buoyant water, noting it feels like a luxurious spa experience. Many with sensitive skin report less irritation compared to traditional chlorine hot tubs, appreciating the lack of chemical odor. According to ConsumerAffairs, owners value the reduced need for manual chemical additions, which simplifies maintenance.

However, some reviews highlight drawbacks. Users in colder climates note challenges with chlorine production below 60℉, requiring additional sanitizers. Others mention corrosion issues if salinity levels aren’t carefully monitored, leading to costly repairs. One user shared, “The water feels amazing, but I wasn’t prepared for the salt cell replacement costs every few years.” These insights underscore the importance of understanding the pros and cons of saltwater hot tubs before purchasing.

Common Misconceptions About Salt Water Hot Tubs

There are several misconceptions about salt water hot tubs that can cloud your decision-making. One of the biggest is that they are completely chlorine-free. In reality, a salt water hot tub generates chlorine through electrolysis, providing a natural sanitizer that’s gentler than manually added chemicals but still present. This makes the saltwater vs chlorine hot tub comparison less about chemical absence and more about delivery method.

Another myth is that saltwater systems are maintenance-free. While they reduce the need for chemical dosing, you’ll still need to monitor pH, clean the salt cell, and check for corrosion. Some also believe saltwater hot tubs are universally better, but as we’ve explored, they’re not ideal for everyone—especially in cold climates or for those seeking the lowest upfront cost. Understanding these truths helps clarify whether a salt water hot tub aligns with your expectations.

History of Chlorine and Why it’s Used

Chlorine has been used as a sanitizer for water since the early 1900s. It was first discovered as a way to disinfect water by engineers and soon became the first chemical used for pool treatment. Before chlorine was used, pools were cleaned through filtration and frequent backwashing.

The use of chlorine as a disinfectant for water was first suggested in 1894 to make it “germ-free.” Following an outbreak of typhoid fever caused by a faulty sand filter in England in 1905, chlorination became the norm. The practice made its way to the US via New Jersey’s Boonton Reservoir in 1908.

Pros and Cons of Chlorine Water Treatment

Chlorine has several advantages when used as a sanitizer in hot tubs. It is easily accessible and effectively kills or inactivates pathogens and algae. Chlorine provides a higher level of water purification and oxidation than any other method because it is highly toxic. It is also more effective than bromine because it kills contaminants more quickly. Chlorine can also work at lower water temperature levels.

However, there are also some disadvantages to using chlorine in hot tubs. It doesn’t last as long as bromine so it may need more frequent use. Chlorine can also be harsh on sensitive skin.

To learn more, check out this article about whether to use bromine or chlorine for hot tub sanitation.

Modern Cleaning Systems for Non-Salt-Water Hot Tubs

If the cons of saltwater hot tubs give you pause, modern cleaning systems for non-salt-water hot tubs offer compelling alternatives. These systems reduce chemical usage while maintaining clean, safe water, addressing concerns about harsh sanitizers. Two popular options are UV and ozone systems, which complement traditional chlorine or bromine setups.

UV systems use ultraviolet light to kill bacteria and pathogens, reducing the amount of chlorine needed by up to 50%. They’re highly effective and eco-friendly, though they require an initial investment of $300–$800. Ozone systems, which generate ozone gas to oxidize contaminants, can cut chemical use even further. Models like those from Hot Spring Spas integrate ozone for crystal-clear water with minimal maintenance. Both systems pair well with low doses of chlorine, offering a balanced approach for those seeking a gentler soak without the corrosion risks of saltwater.

These advancements make regular hot tubs increasingly appealing, especially for users who prioritize simplicity and cost-effectiveness. By combining UV or ozone with chlorine, you can achieve a spa-like experience that rivals the benefits of saltwater hot tubs without the added complexity.

FAQ

How Much Is a Salt Water Hot Tub?

A saltwater hot tub sanitation system is usually an add-on to a hot tub. The costs range from $400 to $1,000 or more

The initial cost of a chlorine system is generally less than a salt water system hot tub. Chlorine hot tubs cost between $5,000 and $8,000 while luxury ones can cost up to $16,000. Salt water systems cost $500 to $1,800 to install in an existing hot tub. The maintenance of a chlorine system is also cheaper as the filters can be easily replaced and are relatively cost-effective.

However, it’s important to note that while the initial cost of installing a salt water hot tub is quite high, it may save you money in the long run. With a saltwater system, you’ll replace the cartridge three times per year instead of adding chlorine daily or weekly. You’ll also only need to drain and refill your hot tub once a year instead of once every 3-4 months with traditional chlorine.

Read our full guide about hot tub running costs.

Is a Salt Water Hot Tub Better?

Saltwater hot tubs have several benefits over traditional hot tubs, such as lower long-term costs, better buoyancy, and softer water. However, they also have some downsides, such as higher initial costs and the need for regular maintenance. Whether or not a saltwater hot tub is better depends on your personal preferences and needs.

Are Salt Water Hot Tubs Safe?

Saltwater hot tubs are safe as long as they are used and maintained properly. However, it’s important to follow the manufacturer’s instructions and to test the water regularly to ensure that it is safe for use.

Is UV Better than Salt Water Hot Tub?

UV and saltwater hot tubs both have benefits for hot tub maintenance. UV systems use ultraviolet light to kill bacteria and other harmful organisms in the water. Saltwater systems use a natural chemical reaction to produce chlorine. Both systems have their pros and cons, and the choice between them depends on your personal preferences and needs.

Choose Chlorine

While saltwater hot tubs have several benefits over traditional hot tubs, they also have some downsides. Chlorine is still a highly effective and safe way to keep hot tub water clean and free of bacteria. Whether you choose a traditional chlorine system or a saltwater system, the most important thing is to maintain your hot tub properly and test the water regularly to ensure that it is safe for use. If you want to explore your options or work out how to choose a hot tub, talk to our friendly staff members at Epic Hot Tubs. We’ll be happy to give you real answers based on our experience with the best hot tub brands and spas.

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About The Author:

Manny Brambila

Manny Brambila - Pool & Spa Expert

Manny has been in the Pool & Spa industry for over 15 years and is considered a pool, swim spa, & hot tub expert. He has been a Certified Pool & Spa Operator (CPO) since 2009 and worked 15 years in aquatic training and development for the largest pool chemical and customer care company. He also has been an outside consultant for the Pool and Spa industry in Chicago, New York and Los Angeles since 2018.