Pool Operators Test Questions and Answers with complete solution

Chemical name for liquid Chlorine - Sodium hypochlorite Ideal level for Chlorine - 1-4 ppm Is the pH for liquid Chlorine high or low? - high, add acid to bring back down What is Hypochlorous acid? - a strong oxidizer known as Free Available Chlorine What is FAC? - Free Available Chlorine Chemical name for solid Chlorine - Calcium hypochlorite What is HTH? - Another name for solid Chlorine or Calcium hypochlorite What is Calcium hypochlorite used for? - targeted disinfections, typically on the pool deck What does Calcium hypochlorite do to the calcium levels? - raises the calcium concentration Facts about Chlorine Gas - 100% FAC, causes significant safety concerns and is barely used today Salt Based Chlorine Generation (Salt Water Pools) - chlorine is generated from salt through electrolysis Advantages to Salt Based Chlorine Generation - easier to store, more gentle on humans, reduced hazardsDisadvantages to Salt Based Chlorine Generation - harder to maintain, very expensive but pays off in the long run