Salt-water chlorination is a process that uses dissolved salt (2,500–6,000 ppm) as a store for the pool’s chlorination system. The chlorine generator (also known as a salt cell, salt generator, or salt chlorinator) uses electrolysis in the presence of dissolved salt, or sodium chloride (NaCl), to produce hypochlorous acid (HCIO) and sodium hypochlorite (NaClO), which are the sanitizing agents already commonly used in swimming pools. As such, a saltwater pool is not actually chlorine-free; it simply utilizes a chlorine generator instead of direct addition of chlorine.