PoolPower Salt-Water Chlorinators use electrolysis to harness the power of salt and unleash the chlorine within to create a self-cleaning chlorination system for your pool. The process begins with salt, which is converted to chlorine. The chlorine then sanitizes the pool without the use of noxious chemicals-so no more shocking. Finally, the chlorine reconverts to salt and is used to power the next sanitation cycle, the moment the filtration system kicks in.