Salt electrolysis is a very commonly used technology in private swimming pools because, in the medium term, it is economically competitive when compared with chlorine; the water is slightly brackish, pleasant to the touch, beautiful and crystalline, without any odours and doesn't require a lot of maintenance.
The operating principle of salt electrolysis disinfection involves a cycle in which the chlorine contained in salt (NaCl) is continuously reused. Initially, salt is dissolved in the water and, through the electrolytic cell, chlorine is separated from salt, resulting in sodium hypochlorite. When a sodium hypochlorite molecule finds a bacteria, it causes its oxidation and, consequently, sterilizes the water and creates a new salt that, in turn, by going through the electrolytic cell again, generates sodium hypoclorite once again.