'Multifunctional sanitiser providing protection over a wide pH range and therefore easy to use` Bromine Tablets are a slow dissolving broad based biocide speciffically formulated to disinfect Swimming Pool, Spa and Hot Tub water by killing potentially harmful bacteria and other organisms creating a comfortable bathing environment. These tablets should be dosed via a specific floating dispenser or an erosion feeder device. Please Note: this product is supplied in 2x5kg containers. Treatment Test the water for Total Bromine using a BROMINE Test Kit. Only use these tablets in a floating dispenser or a circulatory feeder (brominator) specifically designed for the application of bromine tablets. NEVER MIX BROMINE TABLETS WITH ANY OTHER CHEMICAL. Re-fill the dispenser / feeder within the manufacturers guidelines. Test the water for a Total Bromine reading at regular intervals (daily is ideal). Maintain Total Bromine reading between 4 – 6 PPM (Parts Per Million) Maintain a pH reading between 7.3 – 7.5 Storage & Handling Store in a cool, dry place away from other chemicals. Do not mix with other chemicals. Always wear suitable gloves and eye protection when handling chemicals. Use biocides safely. Always read the label and product information before use