Saltwater hot tub: Pros, cons, and how to convert your hot tub to the saltwater system

Soaking in a hot tub is the great healthy feeling that comes with relaxation after a long day. The hot water also eases the pain and the body conditions that cause them like arthritis, lower back pain, and fibromyalgia. The hot water also widens the veins and reduces the risk of heart diseases.

Salt has been used for therapeutic purposes for millennia, and it is thought to offer a variety of healing effects. This could be because salt includes a variety of useful minerals.

What is a saltwater hot tub?

Any hot tub is a saltwater hot tub, with the addition of salt in the water. But this is not about taking some sodium chloride and mixing it in the water, but it prepares with careful testing and a methodical addition and balancing.

It is pretty good to have a hot tub and you can convert it into a saltwater hot tub if you like soaking in salty water. But you will need to know everything about their mechanism, pros, cons, and the apt practice to convert an existing system to a saltwater system.

How does it work?

The salt system’s moderate quantity of chlorine keeps your water soft for longer periods between emptying and refilling your hot tub water. The continuous flow of organically produced chlorine lessens the risk of harsh chemicals causing dry and damaged skin.

Besides all this, salt increases the buoyancy of the water, making soaking more relaxing.


Balanced chemicals: The saltwater hot tub system secretly monitors the chlorine amount present in water; this is why it produces only the desired amount of it.

This leads to an overall limited presence of chemicals in water and longevity of water freshness. Water appears softer and fresher than that of sanitized through the traditional sanitizing system.

Fewer skin issues: The presence of fewer chemicals in the hot tub means you are less likely to have skin issues. The presence of excessive chemicals causes eye irritation, allergy, and many other problems. Saltwater hot tub systems are free of these kinds of dangers. A gentle soak removes the pains and discomforts.

Less need to drain water: Saltwater hot tubs hold great ease of usage i.e, you need to drain the water fewer times than the other hot tubs. Some hot tubs need draining after one year with normal usage. It reduces the hassle and hours of work. You can use and enjoy more than spending time maintaining them.

Less water usage:  Saltwater hot tubs need less frequent plumbing and refills than customary hot tub systems, they use far less water. This means hot tub owners can enjoy the wellness paybacks while knowing they’re saving a limited resource at the same time.

User friendly: Saltwater hot tubs have nothing complicated that a user may feel reluctant to use them. They admirably do their job and don’t involve the user in any extra hassle. They provide more with fewer efforts from the user’s side.

More relaxation: Saltwater holds more advantages like skin-friendliness, greater buoyancy, muscle soothing, and many more. Water has a deep connection with internal feelings and saltwater plays an even greater role in calming down anyone’s extreme feelings. From lowering the tension on muscles by higher buoyancy to generating an emotional balance by exfoliating the open pores, saltwater hot tubs reactivate the mind and body.

saltwater hot tub


Greater initial cost: Saltwater hot tubs are more expensive to purchase than ordinary hot tubs.

A saltwater system as a supplement to your current hot tub requires a significant investment, ranging from $500 to $5,000.

Replacement of cells increases your costs: A hot tub salt cell can last anywhere from 2 to 5 years, depending on the quality of the cell, how often it is used, and how well it is cared for.

Salt cells are built up of parallel titanium plates that may break off over time as a result of low salt levels, wear, and strain, or poor maintenance.

Corrosion risk: Metal is corroded by salt. Excessive salt levels have can damage heaters, liners, and underwater lights in saltwater systems.

Conservation of temperature: Saltwater chlorination may not be as successful as traditional techniques of water chlorination if the water temperature remains over 60°F. Even if the cell is working, your salt system may have trouble creating chlorine when the water temperature drops below 60 degrees Fahrenheit.

When the water temperature drops below 60 degrees; most salt systems instantly shut down, potentially lowering the chlorine level and producing a breeding habitat for germs.

How to convert to a saltwater hot tub?

Purchase the saltwater hot tub system:

All the saltwater systems work similarly. You should choose the one you consider most appropriate for usage.

Drain and refill:

This is the initial step in converting to the saltwater system. Drain the hot tub perfectly and refill it with fresh water. This will be a good start. You can do your cleaning activity at this stage.

Test the water:

The level of your hot tub chemistry you need to have here at this stage is the sanitizer level. Make sure that level is between 1.0 and 3.0 ppm.

Install the new setup:

For your saltwater system, you’ll need a GFCI outlet. If you don’t already have one, you can ask a professional electrician for service.

After you’ve found the outlet, attach the power supply to the hot tub’s wall and connect the salt cell to it.

Secure the cell holder:

If your chlorinator kit didn’t include items to secure your cell holder in place, you can use electrical tape or whatever the manufacturer suggests.

Pace the cell in the water:

This is where you will have to read your directions carefully and make sure you are following them appropriately for your particular unit.

Different systems have different methods of salt cell placement and some will dangle over the edge of the tub, some will drift, and some will be immersed about a foot under the water.


You have successfully done all the necessary steps. Now plug in the salt cell generator into the GCFI unit.


Add the salt:

We highly recommend testing water and checking the salt level before adding the salt. There is a possibility that your water already contains trace volumes of salt naturally, but you will need to add a little amount to reach it up to the levels it should be to prepare your new generator ready to use.

The amount of salt is usually mentioned in the user manual. The most common value is about 2,500 ppm. Check your manual to find the exact amount.

Bottom line:

It’s also worth noting that not every hot tub can be converted to a saltwater system. You’ll have to verify with the manufacturer of your hot tub to find out.

saltwater hot tub

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