The reversal of the flow of water from its intended direction in any pipeline or plumbing is referred to as backflow. Backflow is a public health hazard that allows drinking water in plumbing systems to become contaminated and unusable.
A backflow preventer is a mechanical device installed in a plumbing system that prevents water from flowing backward in the system. Walter Plumbing & Heating will properly install, test and maintain a backflow preventer at the service entrance to your home or commercial building so you can be confident that poor quality water will not flow to the community water system. All water users benefit from an active, on-going cross connection control program that includes the installation of backflow preventers.