There is some concern about the leaching of chemicals that can give water a plastic taste, PVC pipe is designed to withstand damage from virtually any corrosive chemicals and gases. Because of this, they have no problem transporting water over long periods of time. Some have reported water having a “slightly plastic taste,” but this taste is not harmful and usually disappears within a few months of use. Using PVC materials for potable water is not a health risk!
though the taste usually improves after a few months. Safety issues are mainly considered a concern in PVC pipe that was manufactured before 1977. While I’ve not seen any compelling evidence of the health risk of drinking water from PVC or CPVC plumbing, there is always the possibility that something will turn up in the future. Future research will continue to study flushing and disinfection techniques in various types of piping and will include an examination of how water temperature affects the leaching process. Learn more about Rubber molding properties.