Sep 28,2023

What is the Best Way to Prevent Backflow?

When you turn on the faucet in your home, it’s a common expectation that clean, potable water will flow out. Simultaneously, wastewater should flow away, disappearing down the drains. However, sometimes, this process is disrupted, and water flows in the wrong direction, causing backflow. Backflow occurs when wastewater reverses its course and comes back into your plumbing system, contaminating your clean water supply. At Rooter Man, we recommend various backflow prevention devices to safeguard your home’s water quality. Here are the best ways to prevent backflow.

Understanding Backflow

Backflow can happen for several reasons, including changes in water pressure, siphoning effects, and even backpressure from downstream sources. When backflow occurs, it can introduce contaminants, such as chemicals, bacteria, or pollutants, into your drinking water, posing significant health risks. The best way to mitigate such issues is to consult a professional plumbing service. We can inspect your plumbing and recommend the following solutions to prevent backflow.

RooterMan All Services

Air Gaps

One of the simplest and most effective methods to prevent backflow is through the use of air gaps. An air gap is a separation between your faucet and the flood-level rim of a receptacle. It creates an open space that prevents any direct connection between the clean water supply and potential contaminants. This gap ensures even if backflow occurs, it won’t reach the clean water supply.

Reduced Pressure Principle Backflow Preventer

For more complex plumbing systems, especially in commercial and industrial settings, a Reduced Pressure Principle Backflow Preventer, or (RPBP), is an effective solution. A dependable plumber employs a sophisticated valve system to maintain a higher pressure in the clean water supply than in the potentially contaminated water source. This pressure difference ensures even if there is a drop in pressure or a backflow event, the clean water remains protected.

Barometric Loop

A barometric loop is a simple and effective backflow prevention method. It entails creating a loop or U-bend in the plumbing line, allowing any backflow to become trapped in the lowest point of the loop. This trapped water prevents contaminants from reaching the clean water supply. Plumbing service providers use barometric loops with other backflow prevention devices for added security.

Pressure Type Vacuum Breaker

Pressure Type Vacuum Breakers are commonly used in outdoor water systems, like garden hoses or irrigation systems. These devices rely on a spring-loaded check valve that opens when water pressure is applied, allowing water to flow in one direction. When the water supply is turned off, the check valve closes, preventing any backflow from occurring. This straightforward device provides reliable protection for outdoor water sources.

Hose Bib Backflow Preventer

Similar to pressure-type vacuum breakers, hose bib backflow preventers protect outdoor faucets or hose connections. A skilled plumber can install the device easily, blocking backflow. These devices are essential for safeguarding your outdoor water supply from contamination.

Choosing the Right Backflow Prevention Method

The best method for preventing backflow in your home depends on various factors, including the complexity of your plumbing system, local regulations, and the specific applications in which you need protection. While simple measures like air gaps and hose bib backflow preventers work well for many residential situations, larger or more complex systems may require the installation of RPBP devices or barometric loops.

It’s crucial to consult with a professional plumber to assess your needs and ensure compliance with local codes and regulations. Regular maintenance and testing of backflow prevention devices are also essential to ensure they continue to function correctly. Contact us at Rooter Man and access quality plumbing services at competitive rates.