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 …

Aug 4, 2025 · Sometimes, water from private plumbing can flow back into public water systems, which is known as backflow. To prevent this, some customers must install and maintain backflow prevention …

Feb 19, 2025 · Backflow occurs when the normal flow of water in a plumbing system is reversed, allowing non-potable (contaminated) water to enter the clean water supply. This can introduce …

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 …

Backflow is a plumbing phenomenon that occurs when water flows in the reverse direction from its intended path in a plumbing system. This reversal might seem like a minor inconvenience, but it …

Backflow is the undesirable reversal of this flow of water and undesirable substances from the non-potable source to the potable source. Why is Backflow Testing Important? Backflow testing is crucial …

Jan 29, 2025 · Backflow is the undesirable reversal of the flow of water or other substances from a private plumbing system into the public water supply. This can occur in any system where there’s a …

When these situations occur, conditions are present that can allow the backflow of pollutants or contaminants into the water system and threaten the purity of our drinking water system. What is …

Dec 23, 2025 · 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 …

Here is what you need to know about backflow problems and how you can prevent them. Back pressure and back-siphonage are two different types of backflow. Back pressure occurs if the pressure from a …

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 …

Feb 13, 2025 · Learn about backflow, its causes, associated risks, and effective prevention methods. Ensure your water supply remains uncontaminated with proper backflow prevention measures.

Safeguard your water supply effectively with a reliable backflow preventer valve designed for easy installation. Available at Lowe's.

Apr 2, 2025 · But under certain conditions, that flow can reverse, allowing contaminated water to seep back into your clean supply. This is known as backflow, which can introduce chemicals, bacteria, and …

Backflow occurs when water flows in the opposite direction through your plumbing, potentially contaminating clean water with dirty water. Backflow can cause serious health and safety issues, …

Learn the essentials of backflow systems with our Backflow Basics guide. Understand installation, maintenance, and safety for your backflow projects.

Dec 3, 2024 · Learn what backflow is, why it’s dangerous, and how to safeguard your home from contamination with practical advice from a certified backflow tester. Don’t let lawn pesticides or sewer …

Aug 18, 2025 · Backflow is the unwanted reversal of water flow in a plumbing system. Instead of fresh, potable water moving from the main into your building and out through fixtures, water flows the …

What is Backflow? Backflow is the unwanted reversal of water flow within a plumbing system, allowing contaminants to enter the clean water supply. Normally, water flows in one direction from a municipal …

Understand what backflow is, why it needs to be prevented in your water system and how you can prevent it from happening with compliance.

Jun 6, 2024 · In the world of plumbing, backflow is a term that often rings alarm bells. It refers to an unwanted reversal of water flow within a plumbing system, which can lead to the contamination of …