title: Automated hydrotherapy pool water treatment system.
abstract: An automated hydrotherapy water treatment system was described that controls chemical pumps that maintain the pool's water pH and chlorine levels at the designated set points, regardless of the bather load. This system consists of sensing electrodes, a controller, and positive displacement pumps. Because outbreaks of waterborne infections have never been reported in facilities in which the pool water has been continuously maintained at pH 7.2 to 7.8 with a free available chlorine level of at least 1.0 ppm, we recommend that this type of water treatment system be installed in all public pools.
authors.affiliation: Department of Plastic Surgery, University of Virginia School of Medicine, Charlottesville 22908.
authors.forename: P M
authors.initials: PM
authors.lastname: Devlin
authors.forename: J C
authors.initials: JC
authors.lastname: Hwang
authors.forename: C J
authors.initials: CJ
authors.lastname: Winchell
authors.forename: S G
authors.initials: SG
authors.lastname: Day
authors.forename: R D
authors.initials: RD
authors.lastname: Zura
authors.forename: R F
authors.initials: RF
authors.lastname: Edlich
mesh_terms: D001331:Automation; D002713:Chlorine / Q000032:analysis; D006801:Humans; D006863:Hydrogen-Ion Concentration; D006875:Hydrotherapy / Q000295:instrumentation*; D014867:Water / Q000032:analysis
chemical_list: D014867:Water; D002713:Chlorine