CPVC (chlorinated polyvinyl chloride) is a strong and flexible thermoplastic polymer used in residential construction for hot and cold potable water applications. CPVC is resistant to damage from highly chlorinated domestic water and has a higher temperature tolerance than PVC due to its composition. Water providers utilise chlorine-based disinfection to remove disease-causing bacteria before it enters your home. Disinfection methods and levels in water systems might change without warning depending on your location and the time of year. Corrosion resistance is a feature of CPVC.