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 …

2 days ago · Backflow is technically categorized by the two distinct physical mechanisms that cause the flow reversal: back-siphonage and back-pressure. These two forces describe how contaminants …

Sep 29, 2025 · Backflow is a reverse flow condition that can cause water or mixtures of water and other substances to be pulled back into a water distribution system. Without proper protections, backflow …

Backflow is the undesirable or unintended reversal of flow of water and/or liquids, gases, or other substances from the customer’s onsite plumbing back into the public drinking water system.

Backflow occurs when water flows in the reverse direction from its intended path, potentially allowing contaminated water to enter potable water supplies. This phenomenon poses significant health risks …

If you maintain a cross-connection on your property, you must protect your family and neighbors, as well as other water customers, from a backflow event by isolating the cross-connection as required by …

Backflow, reversal of flow from its normal direction, is usually caused by a backpressure or backsiphonage. Backpressure is a condition that manifests itself when the water pressure within an …

Backflow is when water in a plumbing system reverses direction. If the plumbing system is connected to non-potable materials, it may pollute or contaminate the public supply. Backflow preventers allow …

All residential property owners are required to install and maintain an approved backflow prevention device if their premises contain an actual or potential Cross-Connection such as a well or irrigation …

This report should help backflow assembly testers (BATs) and water systems comply with the minimum test report content requirements in the Operator Certification Rule.