Dry Tec 1-1901-12 Treatment Pool Shock, 12-Pack

HOW TO USE: Use entire contents of bag when opened. If any granules settle to the bottom of the pool use brush to disperse. Add the recommended dosage of this product during evening hours while the filter pump is running. When adding this product to your pool, broadcast the product evenly over a wide area in the deepest part of the pool. If any granules settle to the bottom of the pool use brush to disperse. WATER BALANCE: For best product performance, swimmer comfort, and crystal clear water: Maintain pH in the range of 7.2 to 7.6. Maintain total alkalinity in the range of 60 to 120 parts per million (ppm). Maintain calcium hardness above 200 ppm. Use a reliable test kit that measures all these ranges. Use our pool care products to make adjustments. Follow label directions for each product. Do not enter pool until the free available chlorine residual is 1-4 ppm for each of the below noted water treatment applications. OPENING YOUR POOL: For best results, see the “WATER BALANCE” sectio