Chlorine or bromine are typically added to swimming pools to provide:
- Bacterial disinfection
- Viral inactivation
- Algae control
- Create a minimum ORP (Oxidation Reduction Potential) of 650 mV in the pool to provide good residual disinfection

An ozone system which incorporates a reliable ozone contactor and off-gas destructor to eliminate “surplus” ozone and keep your air quality safe, can save you money and minimize the chemicals that you need to buy, transport, and handle, such as chlorine which can be very toxic.

If you purchase an ozonation system which provides a minimum CT value (ozone concentration x time) of 1.6 mg/l-min, bacterial disinfection and viral inactivation will be assured and it will also provide more than 3-logs of Giardia cyst inactivation if they are present and more than 4-log inactivation of enteric viruses according to the U.S. EPA based upon using ozone primary disinfection of drinking waters or swimming pools at 25C or less.

Your should also look for models of swimming pool water treatment systems which use ozone and automatically add small amounts of chlorine, pH up and pH down to control the pool water chemistry automatically so you don’t have to. This type of system can make it easier to maintain your pool and save you money and time.