Backflow into the public water distribution system can occur when the water pressure in a consumer’s premises is higher than the pressure in the water distribution system. This condition can be caused by a drop in water pressure in the distribution system (for example, because of firefighting or a break in a water main) or by the presence of systems within a consumer’s premises that operate at higher pressures than that of the distribution system.
Where Should One Have a Backflow Preventer?
For most cases, a backflow preventer is used in commercial buildings to protect the public from contamination due to attached machinery, tanks, and other water connected items. Residential customers will most often find a backflow preventer on the lawn sprinkler system and residential boiler system.
Call (734) 292-4349 to learn more.