Back-pressure backflow is the same as back-siphonage backflow

Question

Quizplus · Accepted Answer

Back-pressure backflow occurs when the pressure downstream becomes greater than the pressure upstream, causing water to flow backward through the pipes. Back-siphonage backflow occurs when a negative pressure is created in the plumbing system, causing water to be siphoned back into the supply. While both types of backflow can result in contamination of the water supply, they are caused by different mechanisms.

Back-Pressure Backflow Is the Same as Back-Siphonage Backflow