chemical free hot tub reviews

Natural hot tub treatments are all the rage, though you need to ask yourself a few questions before you decide whether or not they are right for you.

Have you ever suffered from a hot tub rash or dry skin after a soak?

Have you noticed the negative effects of draining your hot tub or swim spa filled with chemical products?

Hot tub owners are constantly looking for ways to run their hot tubs without spa chemicals. Not only can chemical reduction create a more environmentally-friendly space, but it can also be more gentle on spa owners themselves. While most alternatives still require a slight bit of chemicals, there are plenty of natural hot tub treatment systems out there that greatly reduce the need for chemicals.

There are also plenty of best practices that can reduce the need for chlorine or bromine to keep your hot tub clean. In turn, healthier water means healthier skin, hair, and eyes. 

Let’s dive in and take a look at some of the best natural spa treatments on the market today.

The Best Natural Spa Treatment Alternatives

If you’re in the market for a high-quality, natural spa treatment, then you’re in luck. there are plenty of systems out there that dramatically reduce your chlorine/bromine use.

UV systems

If you’re looking to minimize your use of chlorine and bromine use, you might consider going with a UV system.

UV or ultraviolet can sanitize your spa in a chemical-free manner.

This particular system sanitizes your spa by sending UV radiation through the hot tub water via UV bulbs.

You can also use a Biguanides solution to run your hot tub without chemicals.

 Biguanide is a gentle sanitizing solution that utilizes a non-bromine or non-chlorine shock. Utilizing this particular spa water treatment requires a lot of care and attention. If you choose to convert your spa back to bromine or chlorine at a later time, it will take a fair amount of work.

Saltwater System

Using a saltwater system gets rid of the need for chemicals like chlorine and bromine. However, that does not mean that a saltwater system does not make a non-chlorine tub. When you electrolyze salt, you get chlorine, just not as much as you would find in a standard chlorine system.

Saltwater systems are much easier on the body, perfect for those who have skin problems developing from hot tub use.


People looking for unique ways to run their hot tubs without the use of chemicals often find that injecting ozone into the spa water can do the trick.

Ozonators, however, are not registered sanitizers, meaning you will need to use some sanitizer to finish the job.

Of course, they will reduce the need for harsh chemical products, which can maintain healthier spa water.

 You will need to utilize shock products on your hot tub more often, and ozonators also tend to cost a bit more. Sometimes, they even require spa modification, which can mean more money out of your pocket.


Ionizer products are excellent, as they inhibit the growth of algae and other types of bacteria that you wouldn’t want in your hot tub. While these ionizer products are natural spa treatments, they do NOT sanitize your spa. You will still need to use sanitizer products to keep it clean. They will, however, reduce the amount of chemicals that you need for cleanliness.

Non-Chlorine Shock

This type of shock is very different from a typical chlorine shock, as it is not a sanitizer on its own. With that said, it does oxidize the hot tub water, which removes any harmful or unwanted contaminants while improving overall clarity. Water with this kind of shock will optimize the small amount of chlorine inside as well.

Take a look at our best hot tub chemicals for sensitive skin.

Enzyme-Based Treatment

One of our favorite natural spa treatments is the enzyme-based spa treatment. You will still need to use sanitizer and shock when using enzymes, though it is much easier on the skin thanks to the reduced need for chemicals.

Enzymes are incredibly environmentally-friendly as well. If you’re conscious about the environment and the harm that hot tub water and chemicals can have on it, then an Enzyme formula treatment like this one is a great choice. One of our absolute favorite enzyme treatments out there is the Spa Marvel Enzyme Water Treatment & Conditioner.

Reduce Your Need For Chemicals With These Practical Spa Tips

Beyond using alternative treatments and systems, there are plenty of things that you can do every single day to reduce the need for chemicals in your hot tub.

Shower Before Using Your Hot Tub

One of the best ways to reduce the need for chemicals in your hot tub water is by showering prior to getting into your spa. When you shower, you get rid of all of the body’s natural bacteria, body oils, and personal products that would otherwise come off your skin and float about in your water. If you often use your spa with friends and family, you should ask them to shower with soap and water prior to entering.

In the end, it will reduce the amount of chemicals that you need to add to your hot tub water to keep it clean.

Keep A Cover On Your Hot Tub

If you don’t have a hot tub cover, it is time to get one. Hot tub covers are absolutely essential for protecting your water, no matter what kind of system that you use to keep your water clean.

Covers can help block out dirt, debris, and creepy crawlers from getting in your hot tub water. 

Without these alien substances in your spa, the chemicals inside will work more efficiently and maintain the clarity of the water.

If you’re trying to run a hot tub without chemicals, having a cover is even more important.

Drain Your Hot Tub Water More Frequently

Experts generally recommend draining your hot tub water every three to four months if you can.

Draining the water in your hot tub is an essential part of the maintenance process.

If your spa does not use chlorine, you should try and drain your water every two to three months.

Overall, draining your hot tub more frequently will reduce the chemicals needed to keep your water clean. Your skin will thank you for the results.

Final Thoughts – Why Should You Consider Natural Hot Tub Treatment?

The idea of procuring crystal clear water without chemicals may have seemed impossible a few decades ago. However, with more natural spa products on the market than ever before, natural, crystal clear water isn’t as far of a reach as people may have initially thought.

From enzymes to hydrogen peroxide to proper hot tub maintenance, there are plenty of things that you can do to keep your spa clean and your skin feeling soft after each use.

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