Letter: Disinfecting Drinking Water
Hi, Your articles have mentioned calcium hypochlorite. I went to the pool store today, and they had sodium dichloride. Should I ask specifically for the first? I’m not sure if the girl behind the counter is going to know how to help me on this one. Thanks – D. HJL Responds: We only recommend calcium hypochlorite, even though sodium dichloride is also used as a disinfecting agent. The pool shop should be able to order it for you. You are basically looking for a chlorine bleach solution to stabilize and disinfect your water. Liquid bleach has a very short shelf …