What is Ozone?

Ozone, sometimes referred to as energetic oxygen, is a powerful oxidizer, sanitizer and precipitant. It is made available for hot tubs and spas through the use of a device called an Ozonator. Ozone is formed when three atoms of oxygen are bound together, instead of the normal two. If you have ever detected a faint, sweet smell in the air after a lightening storm, that was ozone!

  • Reduces need for high chemical doses
  • Destroys bacteria, viruses, algae, yeasts
  • Reduces chloramines and “chlorine odor”
  • Prolongs equipment life
  • Reduces maintenance time & cost
  • Ozone is a natural purifier

Ozone oxidizes soap, deodorant, hair spray, cologne, makeup, perfume, body lotion, hand cream, sun tan lotion, saliva, and urine. Used in concert with your sanitizer, ozone helps kill pathogenic bacteria, germs, and viruses and helps to oxidize organic contaminants. Ozone frees up combined chlorine and bromine, thus freeing them to be continuously reused. Ozone ultimately enhances the performance of chlorine and bromine.

Less chlorine or bromine may be needed to maintain a residual. The quality of water will be dramatically better with the combination of ozone and chlorine or bromine than with chlorine or bromine alone. Ozone is also great to use with alternative sanitizers.

The ozone not only destroys microorganisms, it also breaks down harmful chemicals, and causes total dissolved solids to clump together for easier removal by the filter. The result is water which is cleaner, clearer, and smoother feeling to the skin.

How is Ozone produced for hot tubs?

There are two widely used methods for producing ozone in spas:

  1. The solid-state corona discharge (CD) system. This is the state-of-the-art equipment which produces ozone more energy-efficiently than old style UV lamps.
  2. The older-style UV ozonators generate ozone as air is exposed to Ultra Violet light.

What are the other benefits?

Ozone helps prevent the calcium in spa water from chelating, and thus conditions the water. This is good for equipment and more enjoyable for you. For many, the water will actually feel softer!

Will Ozone replace my current sanitizer?

No. Ozone has a very short half-life in water (about 15 minutes) and it is not totally effective as a sanitizer. You will still need to use a system such as bromine, Rain Forest Blue, or Nature 2. However, you will find that you can use a lot less chemicals– often 25 to 50% less, and this will pay for your ozone system over time, and make spa maintenance much more trouble free. With Rain Forest Blue and Nature 2 alternative sanitizers, you will probably be able to reduce the amount of shock used. Actual reductions will depend on many factors, including water quality and bather load.

How long should I operate my ozonator each day?

To be effective, you should run your ozonator at least 4-6 hours per day. If your spa filter/pump is controlled by a timer, a good method is to set it to run for two 2 to 4 hour cycles, 12 hours apart, each day. Check your spa owner’s manual.

Some spas are set for continuous ozonator operation via the slow speed pump. Spas without timers will operate the ozonator whenever the thermostat kicks-in the pump motor

Is the ozone produced in my spa safe to me and the environment?

The amount of ozone produced by a hot tub ozone generator is insignificant to the normal atmosphere we live in. When dissolved in water, ozone is extremely safe. Excess ozone quickly converts back to oxygen.
Note: do not breathe concentrated ozone gas.

If I use an ozonator in my spa, will I help replenish the Earth’s protective ozone layer?

Unfortunately not. Because ozone reacts so quickly with contaminants in water and air, it converts back to oxygen within minutes or even seconds. Any ozone molecules that break free from the spa water will convert to oxygen and never reach the upper atmosphere.

Will ozone affect my pH?

Ozone is pH neutral. It will not adversely affect the pH of your hot tub water.

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