What are backflow, backpressure, and backsiphonage?
Backflow is the reverse flow of water. Backflow occurs when water from a building or home flows back into the city water mains. Backpressure and backsiphonage are the two types of processes that can cause backflow. Backsiphonage is created when a negative pressure is applied at a building’s tap, creating a potential for contaminants to be siphoned into the drinking water system. Backpressure is the condition where a building’s plumbing system has a greater pressure than the public distribution water main system forcing water back into the main.
