Plumbers 911 - Boston
18 Jul

Call a plumber in Boston when your backflow preventer is leaking

Your faucet drinking water is clean thanks to a backflow preventer. The last thing you want is waste and pesticides to flow backward and contaminate your drinking water.

Occasionally, a backflow preventer can leak, which is a severe problem. A backflow preventer cannot protect your drinking water if the preventer is leaking or damaged. You will need to call a professional plumber to fix the problem. 

There are several reasons why your backflow preventer may be leaking.

What causes backflow? 

Backflow happens when pressure changes in the plumbing cause water to flow reverse. This can occur when the pressure in your water tank falls below the pressure in your home’s water line. It can also happen when there is a break in the main water line or when the fire department uses a fire hydrant.

When pressure changes, the backflow preventer acts as a one-way gate to stop backflow from entering your drinking water unless something causes it to leak.

High-pressure problems

High pressure can open the pressure relief valve on your backflow preventer. This can cause water to leak and discharge from the pressure relief valve until the water pressure returns to the appropriate level.

Debris issues

Debris can sometimes clog the pressure relief valve and prevent it from closing correctly. If the leak is continual and does not let up, debris is likely the problem. Fortunately, it is easy for a licensed plumber to remove the debris and fix the leak simply. If the leak persists, the debris may be located deep within the system, or there may be another problem. 

Head assembly malfunction

The head assembly is a critical component of your backflow preventer. If it is not placed correctly, it can cause your backflow preventer to leak. If you installed the head assembly yourself, it is easy to install it incorrectly. That is why we always recommend having the work performed by a licensed plumber. 

First, the plumber must install the timer before the head assembly, or the pressure will not be even, resulting in leaks. The head assembly and other surrounding parts must be tightened by hand. These parts must not be too loose or too tight. It is also essential that the head assembly not be placed unevenly, resulting in leaks. 

Other signs of trouble to look for with a backflow preventer

In addition to leaking issues, there are other signs your backflow preventer may require repair:

  • The water is interrupted or slow-moving.
  • The water smells or tastes bad.
  • There are visible signs of sediment or rust in the water.
  • Some drains have increased water levels, while others have decreased water levels.
  • The water is discolored. 

Need help with your backflow preventer? Call Boston Plumbers 911

If you need help inspecting or repairing your backflow preventer, call Plumbers 911. We are a network of licensed Boston plumbers who can improve your backflow preventer and ensure your drinking water stays clean.

All of our Boston Licensed Plumbers are highly trained, fully vetted and drug tested. Call Plumbers 911 Boston and schedule a time for a trusted, licensed Plumber to come to your house. 

To all our friends and customers regarding COVID-19

We will get through this together To say we are living in “unprecedented” challenging times would be an understatement. We hope this finds you and your family safe and healthy. We would like to list a few pieces of information and websites that we think will be helpful for you during this time.

  • To get the most current information on the COVID-19 virus, please check the CDC (Center for Disease Control and Prevention) website at:
  • icon showing hand under faucet with large water droplets falling on hand Please wash your hands frequently. Washing with soap and water for twenty seconds is the preferred method, however when water is not available, please use an alcohol based hand sanitizer containing at least 60% alcohol.
  • icon of person covering mouth while coughing and a border separating from displeased person close by Practice social distancing by staying at least six feet away from another person.
  • For those of you with children that are looking for something fun to do, there are virtual field trips you can take with your kids that are fun and educational. Here is a link:

Plumbers are considered essential workers during this time and we will continue to work as our number one priority is to “protect the health of the nation.” Stay well, stay safe and we will get through this together.

Your Friends at Plumbers 911

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