Sodium hypochlorite is a chemical compound with the formula NaClO. Sodium hypochlorite solution, commonly known as bleach, is frequently used as a disinfectant and as a bleaching agent. See the Web...
Well, it depends. You don't want to directly mix the two, and you should never use cal-hypo in a chlorine feeder made for trichlor. Cal-hypo can have hazardous reactions with many organic compounds....