The Phoenix Uniform Plumbing Code protects the public water supply, private on-site water supply, and distribution systems by prohibiting cross-connections between potable (suitable for drinking) and non-potable water systems, and by requiring installation of primary and secondary backflow prevention methods. Secondary backflow methods provide an increased level of protection for the public water supply system.
For more information, please contact us at 602-534-2140 or Backflow.Prevention@phoenix.gov.