Hot Tub Sanitizers: A Detailed look at alternatives ways

Salt-based system

Hot tubs are the sources of hydrotherapy, recreation, and relaxation. More than one person can use them at a time, and they are suitable for both indoor and outdoor installation. Many studies show that sitting in the water with more than body temperature helps reducing body pains, anxiety, and skin disorders. Keep the hot tub clean is an essential part of hot tub care. With germs present in the tub, there is a high risk of getting caught by diseases like athlete’s foot, irritation, and diarrhea. Chlorine comes first in cleaning chemicals. Granular chlorine is good for cleaning hot tubs, but it is costly as compared to the chlorine used for cleaning swimming pool water. S0 let’s look at Hot Tub Sanitizers and some of their alternatives.

Why do people want to use a chlorine alternative?

One can look for alternatives of chlorine or bromine for many concrete reasons. Several ways can make you look for a good alternative.

Body’s response to chlorinated water:

Some people must bear a high allergic response to body skin after swimming or taking bath in a hot tub in which chlorine is added. It can cause dryness, eye irritation, and hair damage. Bromine can also cause these symptoms in people after taking bath.

The odor of chemicals:

Mostly, people depend on their sense of smell while making any selection for them. For individuals with highly sensitive smell organs, it is difficult to go with a gaseous smell of chlorine that is usually present thereafter chlorination.

Search for chemical-free Hot Tub Sanitizers:

We sometimes look for keeping us near nature as much as possible. If we focus on a natural diet to stay healthy, then we can also want to keep the hot tub clean in a healthy way. Several systems can significantly reduce chemical usage.

Alternatives of chlorine for the hot tub:

Ultraviolet system:

The ultraviolet system is a non-chemical treatment for hot tubs. Scientists know UV as a robust neutralizer of algae, viruses, and bacteria. It is new as a treatment of hot tubs, but the disinfecting capability of UV rays was known times before. The power of ultraviolet rays eliminates all types of waterborne microorganisms through highly intense emission. They hit and disrupt the DNA of organisms. This is a good way to lowering your usage of chemicals for water treatment.

For ultra-violet treatment, the system is installed in the circulation piping of your spa. The UV lamp is enclosed in a heavy-duty graphite chamber. The quartz glass sleeve protects the lamp from flowing water. The organic stuff present in the hot tub kills second after when highly focused electromagnetic energy and UV rays come from the sterilization chamber.

Salt-based system:

This is system is not chemical-free, yet it excludes chlorine or bromine from your chemical list. This treatment for the hot tub will assure constant access to soft and clean water. It is designed to function in such a way that salt interacts with water to produce chlorine. This chlorine keeps the water fresh and clean. Chlorines produced by this interaction are small in amount and no side effects appear.

This water care system needs a refill after three or four months. There is no headache of complex installation, and the only time-consuming task is water drainage and refilling. This system requires a bit more cost, but you don’t need any other water care supplies and the cost does not burden you when you get long-lasting benefits.

Salt-based system


This is an eco-friendly way of keeping care of your hot tub. An Ozonator is a device that generates the ozone gas and adds it into the water. This injection of ozone in water removes contaminations, kills germs, and makes it clean and pure. This gas also removes the dissolved body fluids, soaps, make-up, sprays, and lotions. You need to add only a little bit of sanitizer with it. So, it minimizes the addition of chemicals and makes the hot tub safe for people with chemical- sensitivity.

Ozonator splits the molecules usually through high-intensity ultraviolet rays or by a corona discharge unit. These free molecules collide with oxygen molecules in water and generate ozone there. The only thing you need to care about ozone is its reactivity. Ozone () is highly reactive and it also splits chlorine and bromine attached with the contaminations. It separates sanitizers making them re-usable and you will not need a shock treatment of hot tub very often.



This is another water purification device that reduces your chemical usage by 90%. It is cheaper than chemicals with more benefits. Ionizers use the naturally occurring procedure of electrolysis for water purification. It all starts with a sacrificial mineral electrode in the return line receiving an ultra-low voltage charge. The release of copper and zinc into the water which is a consequence of this direct current eliminates algae, bacteria, viruses, and mold.

Ionizers are the most appropriate choice for those who suffer from any kind of chemical sensitivity. They are low in cost, good at boosting water quality, reduce your maintenance fatigue and produce no side effects.


Non-chlorine shock:

A non-chlorine shock for a hot tub is an ample dose of potassium monopersulfate or simply MPS. This shock treatment targets the organic contaminants which produce bad smells and cloudy water. Water quality and clarity improve after this shock. It is based on oxygen, and it leaves no odor in water. It improves the efficiency of sanitizers to kill bacteria, resulting in reducing the amount consumed. Non-chlorine shock works by oxidizing the body oils, body wastes like sweat, skin cells, and the remains of deodorants, perfumes, and make-up.

The non-chlorine shock comes in many forms, in simple containers, sachets, and dissolving pods. It is in the powdered form inside the packaging. The simplest and most convenient way is to add the ready-to-use dissolving pods. It is recommended by experts to add the non-chlorine shock weekly. This can greatly work on clearing the cloudy water of your hot tub.

Enzyme-based treatment:

Anyone who has some basic knowledge of biology is familiar with enzymes. They are biological catalyzers, and they can accelerate a chemical reaction. Enzyme-based treatment is a big step in developing chemical-free hot tub treatments.

The enzyme-based products appear in the list of natural treatments because they are plant-obtained products. When they combine with sanitizers, lift the unwanted substances from each part of the hot tub and dissolve them in water, which cleans up on filtration.

Enzymes remove the sources from water on which bacteria feed on. They work with great efficacy, but you must use them along with sanitizers. Yes, enzymes are effective in presence of sanitizers. But there are big advantages of them and their efficiency in removal of contaminations will eventually lessen the use of harsh chemicals.

Enzyme-based treatment

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