How To Convert To A Salt Water Hot Tub


One of the most common misconceptions that people have about saltwater hot tubs is that the water in them is just as salty as seawater. However, this is actually not the case since there is much, much less salt in a hot tub than in the sea. In fact, a human tear contains more salt and is saltier than the water in a saltwater hot tub. Hot tub owners who realize this (as well as the benefits of saltwater hot tubs) usually plan on converting their hot tub to salt water.

Why Convert to a Salt Water Hot Tub?

Saltwater hot tubs are widely popular among many hot tub owners for a variety of reasons such as the ones mentioned below.

Gentler on Eyes and Skin

If you’ve gone on a picnic at the beach before, you know how irritating the salty seawater can be on the eyes and the skin. But as mentioned, a saltwater hot tub contains a very small amount of salt, so much so that you can’t taste it. Along that line, saltwater systems in hot tubs are less irritating on the skin and eyes compared to other chemical-based hot tub sanitizers.

No “Chloriney” Smell

One reason why people switch to saltwater hot tubs is that they don’t like the strong smell of chlorine on their regular hot tub. However, it should be noted that sat water systems in hot tubs still use chlorine, albeit in small (but very effective) amounts that you won’t be able to smell or detect its presence. Besides, if you’re after a natural hot spring experience, then you’ll definitely want to get rid of the ‘chloriney’ smell since you won’t find any natural hot spring that emits such a scent.

Natural Sanitizer

Using a saltwater system allows you to reduce the number of hot tub chemicals that go into your hot tub. This does not only make your hot tub water softer and gentler, but the absence of hot tub chemicals also makes your hot tub safer and more fun to use.


In general, you’ll have to drain and clean your hot tub at least every three or four months as part of your regular hot tub maintenance routine. Sadly, this results in a lot of wasted water. On the other hand, saltwater hot tubs only need to be cleaned as infrequently as once a year. Aside from helping preserve our dwindling water resources, this also translates to huge savings on your water bills.

Ease of Maintenance

With a saltwater system in your hot tub, you don’t need to continually add chlorine or other chemicals to your hot tub. This is because, in saltwater hot tubs, a chemical reaction produces small amounts of natural chlorine to neutralize contaminants in the water. But unlike chlorine which turns to chloramines or inactive chlorine after they do their work, saltwater systems recycle the used salt back into sodium, allowing you to use them again to sanitize your hot tub water.


As mentioned earlier, a saltwater hot tub uses less water thereby allowing you to cut down on your water consumption. But aside from that, there are many other ways that saltwater systems can help you lower your hot tub operations expenses. For example, you don’t need to regularly purchase hot tub chemicals. Although these may seem like a small expense at first, purchasing hot tub chemicals throughout the year can add up to a significant amount over time.

Mineralized Heat Therapy

Soaking in a hot tub can provide a host of health benefits both physically and mentally. However, if you want to boost the healing properties of your hot tub, then saltwater systems can be of help. By adding salt to your hot tub, you will be able to take advantage of the therapeutic effects of natural minerals on the body. Saltwater hot tubs allow you to relax and rejuvenate, and some people even claim that they can feel the soothing effects of soaking in a saltwater hot tub even after they’ve gotten out of the tub.

These are just some of the reasons why saltwater hot tubs are quickly gaining popularity all over the world. Saltwater systems reduce the need for hot tub chemicals, make your hot tub water softer and more therapeutic, and easier to maintain. Suffice to say that saltwater systems can make your hot tub much more enjoyable to use.

Things to Consider


Before you start shopping for a saltwater system for your hot tub, there are some things that you need to know.

First, not all hot tubs are good candidates for saltwater conversion. That said, you’ll want to check with your manufacturer first to ensure saltwater is recommended for your model.

Second, it was mentioned earlier that saltwater hot tubs are easier to maintain, which is true. However, this doesn’t mean that saltwater hot tubs are maintenance-free. You still need to do some basic hot tub maintenance as well as clean the cells inside the saltwater generator every few months. Saltwater hot tubs will need to be maintained, although not as extensively as a regular hot tub.

Lastly, your hot tub water won’t be completely chlorine-free. Remember, saltwater systems produce natural chlorine to sanitize your hot tub water. And if the salt levels in your hot tub fall below the efficiency level, you’ll have to shock your hot tub with regular chlorine to kill the germs and bacteria.

Converting to Salt Water Hot Tub

After going over the benefits and drawbacks of saltwater hot tubs, and deciding that the pros far outweigh the cons, then converting into a saltwater hot tub is decisively the way to go. Don’t worry, the conversion isn’t difficult and even you can do it. However, you can also hire a hot tub specialist to do it for you if you want to. Still, if you decided that you’d rather do it yourself, here’s how you go about doing it.

1. Purchase a Salt Water System

There are a variety of saltwater systems in the market nowadays, and choosing from all the options available can sometimes be overwhelming. To make things easier, you can call your hot tub manufacturer and ask them for recommendations. More often than not, they will be recommending their own products. There’s nothing wrong with this because this ensures that your hot tub and the saltwater system will be compatible. Still, feel free to explore other options if you don’t like your manufacturer’s recommendations.

2. Drain Your Hot Tub

Once you have your saltwater system, it’s time to drain and clean your hot tub. You may also want to give your pipes a deep cleaning to flush out any germs, bacteria, and biofilm that may be present in them. Afterward, you can start refilling your hot tub with clean fresh water.

3. Check Your Water Chemistry

Here, you’ll want to make sure that your sanitizer levels are between 1.0 and 3.0 ppm.

4. Install Your Salt Water System

Locate your ground-fault circuit interrupter (GFCI) outlet then mount the power supply to the wall of the hot tub and connect the salt cell to it. If you don’t have a GFCI outlet, you’ll have to call an electrician to set one up for you. Unless you’re a trained electrician, you don’t want to be doing this yourself.

5. Secure the Cell Holder

In general, your saltwater system will come with dedicated fasteners that will allow you to fasten your cell holder in place. However, if it doesn’t then you can use other materials that are sturdy enough to hold the cell holder in place. You can ask your manufacturer for an alternative that they may recommend.

6. Put the Cell in the Water

There are different ways of placing your saltwater system cell in the water. For instance, you can let it dangle over the edge of your hot tub or you have to immerse and fasten it under at least a foot underwater. Some cells float on the water. In any case, refer to your owner’s manual to determine the appropriate cell placement for your particular saltwater system.

7. Plug It In and Add Salt

Plug your new saltwater system into the GFCI outlet and power it up. Then check the salt levels and add as necessary. Your water will already probably have trace amounts of salt naturally, but you may need to add some more salt to get it up to the levels it needs to be to prime your new generator. Just how much salt is necessary will depend on the system you purchased so you’ll have to refer to your owner’s manual to find out.

Globo Surf Overview

A saltwater hot tub certainly has many benefits, which is why many hot tub owners are converting their regular hot tub to saltwater systems. As can be seen above, converting to a saltwater system isn’t really that difficult, though you may require the help of a professional about installing a GFCI outlet. Other than that, you can do the rest of the installation yourself. Still, remember to check in with your manufacturer to make sure that you’re doing everything right. Once, you’re done, you can now sink into your new saltwater hot tub and enjoy all the benefits mentioned above.

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Globo Surf
My name is David Hamburg. I am an avid water sports fan who enjoys paddle boarding, surfing, scuba diving, and kite surfing. Anything with a board or chance I can get in the water I love! I am such a big fan I decided to start this website to review all my favorite products and some others. Hope you enjoy!