Add directly to pool water with normal circulation. Depending on the age of the mineral buildup and composition Leslie's Stain And Scale Prevent will remove calcium and metal stain buildup within 2 to 3 weeks. Old, harder composition scales usually take longer and may require a second treatment. Synertec-Andlaquo; polymer technology provides unsurpassed surface protection without phosphates and acids. Dosage: 5 oz per month.
Leslie's Stain And Scale Prevent 1/2 G
Leslie's Stain And Scale Prevent provides the ultimate protection to prevent white calcium and hard silica scale build up - PLUS metal stain control.