Pool Shock is applied in a single dose larger dose to remove waste and destroy bacteria and algae for a clean and safe pool you can enjoy all year round. Super-chlorinate regularly to maintain the best water clarity and free chlorine effectiveness. 

Chlor 65 is a granular chlorine shock of 65% cal-hypo.

Pool Shock works overtime eliminating contaminants now while preventing future growth of bacteria and algae. Shocking your pool weekly during swim season kills microorganisms and deals with swimmer waste left behind by regular chlorination. Shocking will also removes Combined (used) Chlorine, reducing eye and skin irritation as well as maintaining a sparkling clean pool.