REVIVE! Swimming Pool Phosphate and Algae Remover Chemical For Pools - 16 oz REVIVE! Swimming Pool Phosphate and Algae Remover Chemical For Pools - 16 oz REVIVE! is an excellent initial water treatment to eliminate potential problems in new pools, spring starts and well-source water. REVIVE! is a superior spot treatment to clean out phosphates (which algae feed on), copper, iron, scaling carbonates, organic debris or other clouding matter when you need to clear water fast and clear water sure. Removes orthophosphates up to 2000 ppb Removes Copper & Iron up to 2.0 ppm GREEN TO CLEAN WATER - Captures organic debris and scaling carbonates