Abstract: A bath water treating system in which even higly resistant germs may be destroyed by treating the bath water with ozone and a halogen compound such as bromine or hydrobromic acid to establish a redox potential in excess of 600 mV. The bath water is recycled through a quartz type filter loaded with a composite filtering medium. The filtering medium comprises two superposed layers, a lower layer consisting of a mixture of filter gravel and mineralized charcoal, and an upper layer of activated charcoal. A halogen or halogen compound is adsorbed in the charcoal layer. An ozone generator is mounted within the filter housing. The bath-tub assembly comprises a cabinet in which are mounted a bath-tub, a filtering and degerminating unit and the respective accessories and controls. The ozonizer is removably mounted within the filter housing and includes a mixing chamber and check valves.

Abstract: A bath water treating system in which even highly resistant germs may be destroyed by treating the bath water with ozone and a halogen compound such as bromine or hydrobromic acid to establish a redox potential in excess of 600 mV. The bath water is recycled through a quartz type filter loaded with a composite filtering medium. The filtering medium comprises two superposed layers, a lower layer consisting of a mixture of filter gravel and mineralized charcoal, and an upper layer of activated charcoal. A halogen or halogen compound is absorbed in the charcoal layer. An ozone generator is mounted within the filter housing. The bath-tub assembly comprises a cabinet in which are mounted a bath-tub, a filtering and degerminating unit and the respective accessories and controls. The ozonizer is removably mounted within the filter housing and includes a mixing chamber and check valves.