Applied Biochemists Algaetrine Size:1 qt Copper is just as effective

Copper is just as effective as the harsh chemicals other brands frequently use

keeping water crystal clear and algae free with only one treatment per week

PH Down can be used with chlorine

This treatment improves filtration system performance by removing contaminants that cause clogging

Applied Biochemists Algaetrine Size:1 qt Copper is just as effectiveApplied Biochemists Algaetrine effectively kills off any green and mustard yellow algae using elemental copper, restoring your pool to its former beauty. Copper is just as effective as the harsh chemicals other brands frequently use, and will not clog your filter, cause foaming, or affect water clarity. It even allows swimming immediately after application! Best of all, Algaetrine is made by Applied Biochemists, a leader in bio based pool chemicals,