Plumbing Backflow Preventers

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Backflow is an often unknown or misunderstood phenomena. Even less understood is the purpose of backflow preventers and how they operate. Backflow is a condition in which water in a building or facility will flow backwards, creating a potential hazard to the domestic water system. Without a properly selected, installed, maintained and tested backflow device, hazard conditions resulting in illness or even death can occur. In this course you will be introduced to what backflow is, under what conditions backflow can occur and the provisions to prevent backflow from occurring. Several key definitions will be presented and the operation of each type of backflow preventer is briefly explained. At the end of this training you will have a workable understanding of backflow devices and how to troubleshoot breakdowns.