“Backflow” is the undesirable reversal of the flow of water and other substances from any source into the distribution pipes of the drinking water system. There are two types of backflow conditions: back pressure and back-siphonage. Backflow puts our drinking water at risk of contamination.
Backflow preventers are required anywhere that a cross connection is made with a potable water source. Some examples are: Sprinkler Irrigation Systems, Soap injection system, Fire sprinkler systems, and Soda fountains, Mop sinks, Chemical storage tanks and hose bibs.
