In The Swim Pool Stain Away Remover 1 qt.
PREVENTS METAL STAINS AND CALCIUM BUILD-UP!Compare to Pool Magnet, Super Sequa-Sol and Metal Control. Prevents ugly stains, scaling and brown water due to minerals. Will actually lighten some stains! Restores brilliance and shine to your pool water. A must for areas with heavy iron content or well water. Initial Dosage: 15 oz. per 10,000 gallons. Weekly Dosage: 5 oz. per 10,000 gallons. Contains: Diphosphonic Acid.