Pool Care Super Mineral Stain Out 1qt

Mineral Stain Out prevents discoloration or browning of pool water and staining by iron, copper, and manganese salts. Mineral Stain Out also removes these stains and help prevent scale buildup on pool equipment and turbidity caused by hard water. Usage: Add 8 oz. weekly per 10,000 gallons of pool water. If the mineral content in the water is greater than 0.2 parts per million, or if the water hardness is greater than 200 ppm, increase the maintenance dosage to 24 oz. per 10,000 of pool water.