How can backflow be prevented?
By installing a Consolidated Utility District approved backflow preventer mechanism to prevent backflow. The basic means of preventing backflow is an air gap, which either eliminates a cross-connection or provides a barrier to backflow. The basic mechanism for preventing backflow is a mechanical backflow preventer, which provides a physical barrier to backflow. The principal types of mechanical backflow preventersare the reduced-pressure principle assembly and the double check valve assembly.