Description of 1 lb. Calcium Hypochlorite Powdered Shock 24 Pack.

Powdered Shock is an extra powerful shock that may be used for spring start-ups or weekly maintenance. This fast-acting shock destroys organic contaminates, kills bacteria, and controls algae by raising chlorine levels quickly. For crystal clear pool water, it is recommended to shock at night and let the pool water filter for 6-8 hours before swimming.

68% Calcium Hypochlorite.

1901-24