BioGuard Banish® algicide when used directed, is a highly effective, patented, non-staining algicide that kills and controls algae in swimming pools. It is especially recommended for killing and controlling green, blue-green (frequently called black or spot algae) and mustard algae growths. BioGuard Banish algicide can be used as a remedy for visible algae or to prevent algae from occurring. Banish is formulated for use in chlorine or bromine sanitized swimming pools of all surface and filter types.
Available sizes: 1 quart
Initially apply 8 oz. per 10,000 gallons. Thereafter, add 1.5 oz. per 10,000 gallons or add 3 oz. every other week. Add more often after heavy rain, frequent backwashing, or partial drain and refill.