Pool Perfect is a proprietary blend of natural ingredients that break down; suntan oils, cosmetics, body oils, bather wastes, and other non-living organic contaminants. Pool Perfect works with all sanitizers and continually keeps filters cleaner longer. Pool Perfect also prevents waterline rings and black water line rings. Just add to the water- no scrubbing necessary! Water stays silky soft and odor free. Pool Perfect contains our SMARTzyme technology.