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A hand antiseptic, hand disinfectant, hand sanitiser or hand sanitizer is a supplement or alternative to hand washing with soap and water. Many preparations are available, including gel, foam, and liquid solutions.
Oxidizers are the secondary sanitizer, used every few weeks to kill algae and bacteria. Chlorine or Non-Chlorine shocks are in a powdered form, just open the bag and pour it into the pool. Calcium Hypochlorite: Cal Hypo pool shock is used to quickly sanitize pool water, boost chlorine levels and kill algae.