A swimming pool ionizer cleans and sanitizes pool water by releasing positively charged copper and silver ions into the water to destroy algae and bacteria. Even though ionization is a proven method for destroying unwanted bacteria and viruses, it’s generally not as effective as chlorine alternatives.

Do ionizers really work in pools?

There is evidence that pool ionizers effectively help eliminate bacteria and harmful pathogens in addition to preventing algae. At least one study has concluded that combined with low levels of chlorine, ionizers were more effective at keeping pools sanitized than higher levels of chlorine alone.

What should my pool ionizer be set at?

The ideal range is 7.2 to 7.6. Anything outside of this range will affect the feel of the water and the effectiveness of the chlorine. With copper ionization, acidic water will increase the risk of copper staining on the pool lining and surfaces.