Profeliz Chlorinating Tablets are perfect for various pool types including above ground and in-ground pools. The instructions as following: 1. Adjust water pH to 7.2-7.6 as determined by a test kit. For pools with copper plumbing best pH factor is 7.6-7.8. 2. If the pool has not been previously stabilized add Conditioner and Stabilizer (cyanuric acid). Follow the directions for use on the label for that product. UNSTABILIZED POOLS: Follow steps 1 and 2 and then add two (2) tablets per 6 500 gallons of pool water to establish a chlorine residual of 1.0-1.5 ppm as determined by test kit. Repeat dosages as needed to maintain a residual of 1.0-1.5 ppm at all times. Thereafter add 1 tablet per 6 500 gallons per week or as needed to maintain chlorine residual of 1.0-1.5 ppm at all times as determined by test kit. STABLIZED POOLS: Follow step 1 and then add 1 tablet per 6 500 gallons per week or as needed to maintain a chlorine residual of 1.0-1.5 ppm at all times as determined by a test ki
PROFELIZ Chlorine Tablets 3 Inch for Swimming Pools Kills Bacteria and Stops Algae Slow Dissolving Exclusive Protective Packaging Pool Chlorine Tablets 20LB Price in USA