The most common way to sanitize your pool is with chlorine. Chlorine can come in liquid, granulars or tablets.
The instant FROG is something that you put in the wall skimmer of your pool. While using this, you only need to maintain a .5ppm of chlorine. The instant FROG last the
whole season, keeping your skin feeling better and lessens the scent of chlorine
FROG Mineral & Chlorine
The FROG inline system offers an easy way to use less chlorine while keeping maintenance minimal.