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The Science Of Supplemental Disinfection Systems

Ozone and UV supplement chlorine differently; operators should understand oxidation, contact time, byproducts, and system design.

6 min read

Photo Credit: Courtesy of DelOzone

As pool operators turn their attention to supplemental disinfection, there is a lesser understood, yet powerful alternative to UV that’s making a big splash--ozone sanitation. Why? And what should you know?

Chlorine has been the standard water-treatment method since 1961 when the United States Public Health Service published its model ordinance governing public pool-water sanitation. Today, as scientists learn more about the limitations and potential hazards of chlorine, and as the number of Recreational Water Illness (RWI) outbreaks increase, talk of supplemental disinfection is gaining more than momentum--it’s earning acceptance.

Supplemental disinfection is used in commercial pools to mediate the inherent weaknesses of chlorine, providing a safer water experience for swimmers and pool employees.