Alternative disinfection systems are growing in popularity. These systems are only to be used in conjunction with a chlorine or bromine feeder. The options are listed below:
Salt Chlorine Generators
Introduce chlorine directly into the circulation line of the pool or spa. Salt is first added to the pool water. This water passes through an inline unit or cell installed in the circulation system. The cell contains plates that are electrically charged. The conversion of salt to chlorine takes place on these plates.
Ultraviolet Radiation (UV)
Ultraviolet Radiation systems use ultraviolet lamps to generate UV radiation to disinfect the water. The water in the pool or spa flows continuously through the UV system where it is exposed to UV radiation. The UV light inactivates bacteria and viruses as well as oxidizes chloramines.
Ozone is a water-soluble gas sometimes used with pool disinfection. It is produced onsite through a generator. It is not maintained in pool or spa water and is used as a supplement to disinfectants like chlorine or bromine. Proper installation and operation of the unit is vital.