TERMINATOR ECONOMICALLY PRICED FORMULA! This non-metallic, non-foaming, low odor algaecide kills all types and strains of algae and is not affected by pH levels. Terminator will not stain surfaces or leave behind any residue. Swim immediate after treatment. Great for all pool types. Dosage: 6 oz. per 10,000 gallons. Buy 4 quarts and SAVE!