The UltraPure Automatic Water Cleaner™ produces the strongest oxidizer available (ozone). The UltraPure Automatic Water Cleaner™ does the oxidation work normally attempted by chlorine/bromine. Obnoxious combined chlorine/bromine compounds are eliminated. Chlorine/bromine then only provides a "free available" residual. All problems and wasted chemicals associated with combined chlorine/bromine are eliminated. The UltraPure™ Automatic Water Cleaner continually burns out contaminants introduced by swimmers. This function is no longer fulfilled by chlorine/bromine. There is no replacement for chlorine/bromine in pool water disinfection. For any alternative treatment/sanitizer to replace chlorine/bromine, it must: provide a stable measurable residual; be a biocide that kills viruses, bacteria and algae; and oxidize impurities introduced by bathers. Chlorine/Bromine is the only sanitizer that fulfills these three functions. However chlorine/bromine is not the best oxidizer. Incomplete oxidation accounts for up to 70% of their usage and 100% of their problems.