GLB Calcium Hypochlorite Pool Shock - Fast-Acting 1-Pound Chlorine Treatment

• 9 to 18 ounces 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
• 9 to 18 ounces of this product per 10,000 gallons of water to provide 5 to 10 ppm available chlorine
• 73% Calcium Hypochlorite

GLB SuperSonic is a highly effective multi-purpose product that sanitizes, clarifies, prevents algae and shock treats your pool. It is convenient, easy to use and won't over stabilize your pool water. The fast-acting formula can be used on all pool surfaces, does not contain cyanuric acid and leaves no residue.