Non-foaming poly-quat formulaNon-metallic - will not stain poolsHighly concentrated algae destroyer and preventative:Initial dosage: 6 - 12 oz. per 10,000 gallonsMaintenance dosage: 6 oz. per 10,000 gallonsOne quart bottles ...

Effective Against: Black AlgaeMustard AlgaeGreen AlgaeYellow Algae Professional algae control at extremely low dosage Start up dosage: 4 oz. per 10,000 gallonsMaintenance dosage: 2 oz per 10,000 gallons Non-foaming and specially formulated to help prevent staining which is possible with other copper based algaecides. One quart bottles. ...