Non Chlorine Pool

by Pool Builders on 03-06-2008 in Articles

Many pool operators are seeking methods of safely sanitizing the water in their pools and spas without the use of caustic and corrosive chemicals that harm pool equipment and irritate the eyes and skin of bathers. There are several methods on the market today, including ionizers, catalytic cartridges and ozone generators. Ozone generators are a method of water sanitation used worldwide, both as a stand-alone system and as a "booster" system, used in conjunction with another method, such as the chlorine generator. The ozone system cannot generally be used as a stand-alone sanitation system, so it is not a good choice for pool operators seeking a completely chemical free pool or spa.

Traditional chemicals such as chlorine and bromine are expensive. A chemical free pool uses only the equipment needed for sanitation. Chemical free maintenance should eliminate your dependency on traditional expensive chemicals. An alternative pool and spa treatment must be chosen carefully, so as to offer a true chemical free pool or spa. Ozone generators are alternative system, but do not lead to that sought-after chemical free environment.

Ozone is a very powerful natural oxidizer, and is lethal to bacteria, viruses, mold, mildew, spores and cysts. It is a natural algaecide. Despite it's effectiveness in purification of water, ozone is very gentle to pool equipment and to skin and eyes. It will not discolor hair or clothing. Ozone is colorless, odorless and tasteless and will leave no unpleasant chemical smells or tastes in the air or water. Foaming and scum lines are effectively eliminated, as is calcium scale, and it will not adversely affect the pH of a swimming pool or spa.

There are two types of ozone generators: the ultraviolet (UV) system and the corona discharge (CD) system. While the UV system uses fluorescent light to generate ozone, the CD system uses electricity, similar to the process of lightning creating ozone during a storm. The CD system may not be as effective in humid climates, since the air entering the chamber with the electrical arc must be very dry. There is often a separate piece of equipment, an "air-drying" section added to the generator. The pool's pump must run constantly so that water is continuously running through the unit. Both types of generator inject the ozone gas they generate into the pool water as it passes through the unit, thereby sanitizing the water.

One drawback to using the ozone generator is that there is no residual protection in the water. Ozone reverts back to oxygen within minutes being injected into the water. Therefore, a low level of chlorine must be maintained in the water. Ozone generators are expensive and can draw a lot of electrical current, resulting in an increase in the pool operator's utility bill.

There are many people who use a chlorine generator for their pool in conjunction with the ozone generator. The chlorine generator is used to provide the residual chlorine level necessary for adequate sanitation. Pool operators looking for a truly chemical-free bathing environment generally should look elsewhere.

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