Code: Bromo Bromine tablets for easy, effective saniting of pool and spa water. These tablets are designed for use with a bromine feeder. When feeder device requires refilling with tables always follow manufacturers instructions. Ensure tables used in the feeder are of the chemicals (Bromo-chloro-Dimethyl Hydantoin) IUse only feeders designed for Bromine. Adjust feeder to ensure a constant bromine residual is present in the pool or spa. Check bromine levels regularly with a test kit and maintain a bromine residual of 3-4mg/litre (ppm) for domestic pools/spa. Check pH value regularly with a test kit and maintain a level of 7.2 to 7.6. NEVER MIX POOL CHEMICALS TOGETHER