Backflow is a term in plumbing for an unwanted flow of water in the reverse direction. [1] It can be a serious health risk for the contamination of potable water supplies with foul water. In the most …

A backflow prevention device prevents hazardous substances from inadvertently being drawn into the drinking water system, contaminating it. All backflow prevention devices must be tested by an …

Backflow is the flow of water in the wrong direction from a resident’s water system into the public water supply.

Backflow refers to the unintended reversal of water flow in a plumbing system, which can lead to contamination. Understanding the causes and types of backflow is crucial for maintaining safe …

Put plainly, backflow is the reversal of normal flow in the drinking water system. It can occur in any cross-connected plumbing system which builds higher pressure than that of the city’s water mains. …

Customer complaints of changes in water quality—such as unusual odor, color, or taste—or physical harm from water contact can indicate backflow. Water-system personnel handling quality complaints …

Apr 11, 2025 · Backflow occurs when water flows backward through your plumbing, potentially contaminating your home’s drinking supply. Your plumbing system is designed to deliver clean water …

Professional testing, repairs, and installations for Phoenix and surrounding communities. Protecting your water supply with certified precision. From annual testing to emergency repairs, we handle every …

Chicago Backflow is the leader in backflow testing, installation, repair, and backflow emergencies in Illinois and Indiana.

In simple terms, backflow occurs when the water flows backwards in the plumbing system, potentially carrying contaminants from various sources back into the clean water supply.