DryTec 1-1901-24-A Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack

One bag of this product per 10,000 gallons of water Adjust and maintain pH at 7.2-7.6 Maintain total alkalinity in the range of 60 to 120 One bag of this product per 10,000 gallons of water provides 5 to 10 ppm available chlorine