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Effortless Guide: How to Remove Air from Water Pipes and Restore Quiet Flow

Author: Lee Devlin

Published on: 28/06/2024

Noisy pipes and erratic water flow signal air trapped in your water system. If you’re frustrated by these disruptions, our practical guide is here to help. Learn how to remove air from water pipes through clear steps, bringing back the silence and smooth flow you expect. No complicated jargon, just a straightforward path to solving your plumbing predicament.

Key Takeaways

  • Detect trapped air in plumbing by listening for noises such as banging or gurgling, and observing water irregularities like sputtering or unsteady flow from faucets.
  • Causes of air entering water pipes include neighbourhood plumbing maintenance, and issues with home appliances like hot water heaters that introduce air into the system.
  • To remove air from water pipes, shut off the main water supply, open all taps and flush toilets, and then turn the main valve back on, starting from the top of the home to the bottom to expel air pockets.

Detecting Air Trapped in Your Plumbing System

Illustration of water pipes with air bubbles

 

 

Unwelcome air in your plumbing can turn a tranquil home into an orchestra of odd noises and water flow inconsistencies. Detecting trapped air begins with tuning into the sounds that reverberate through your water lines and observing the erratic behaviour of water as it exits your faucets. While these symptoms are more annoying than harmful, they’re a clear signal that it’s time to take action and remove air from your plumbing system.

Recognising the Sounds of Air in Water Pipes

Imagine the cacophony of banging, gurgling, and ticking noises coming from your walls—these are the telltale signs that you have noisy pipes caused by air trapped in your water pipes. Such disturbances, known as water hammer, result from air’s turbulent journey through your plumbing lines, leaving behind a water pipes sound that’s anything but harmonious.

And while a gurgling sink might simply mean a clog is present, it’s often a duet with trapped air that requires a different kind of attention.

Observing Water Flow Irregularities

Beyond the audible clues, your plumbing system may also exhibit visual signs of distress. A faucet that coughs up its water rather than delivering a steady stream can be a clear indication that air bubbles are disrupting the water flow. Such irregularities not only impact your daily routines but also hint at underlying issues within your water supply system that need to be addressed.

The Root Causes of Air in Your Pipes

Illustration of hot water heater releasing gases

 

Understanding the culprits behind air’s invasion into your plumbing is essential to preventing its recurrence. Common causes range from maintenance work in your neighbourhood to malfunctions within your own home’s water heating system. Identifying these root causes is the first step toward a lasting fix and a serene soundscape in your abode.

Maintenance Work on Neighbourhood’s Water Lines

When your neighbourhood undergoes plumbing maintenance or upgrades, it can inadvertently send a surge of air into your home’s water lines. This influx of air is often the result of new installations or essential repairs that interrupt the steady flow of water and introduce air in its place—a temporary inconvenience that can leave a lasting racket in its wake.

Issues with Your Hot Water Heater

Your hot water heater is a crucial component of your home’s comfort system, but when it’s on the fritz, it can become a source of air in your hot water lines. Malfunctions like a faulty thermostat or gas release can trap air in the hot water supply lines, leading to the telltale sputtering that disrupts your peaceful showers and adds an unwanted percussion to your household chorus.

Step-by-Step Guide to Purge Air from Your Water Pipes

Illustration of shutting off the main water supply valve.jpeg

Now that you’re familiar with the signs and sources of trapped air, it’s time to take matters into your own hands. Purging air from your water pipes might sound like a task for the pros, but with a few simple steps, you can restore tranquility to your piping on your own. Let’s walk through the process, from shutting off your water supply to ensuring every last bubble is banished from your lines.

Shutting Off the Main Water Supply Valve

The first step to quieting your home’s waterworks is to find and shut off the main water supply valve, also known as the water supply shutoff valve. This gatekeeper of your home’s water flow is often located near the water meter or where the main line makes its grand entrance into your home. By turning this water valve clockwise until it stops, you effectively prevent any more water—and air—from entering your plumbing system.

Opening All the Taps and Flushing Toilets

Illustration of opening all the taps and flushing toilets

 

With the water supply halted, it’s time to give the air trapped within a clear exit route. Begin at the top of your home, opening all hot water taps to address any air lurking in the higher points of your system.

Then, methodically work your way down, opening all the faucets, including cold water faucets and flushing toilets, allowing gravity to guide the air down and out of your plumbing.

Restoring Water Service: Turning the Main Valve Back On

Illustration of turning the main valve back on

The final act in this quieting performance involves carefully turning the main water supply valve counterclockwise, welcoming water back into your pipes. As the water flows, it will push any remaining air pockets out, leaving behind a plumbing system that operates with a whisper instead of a shout.

Remember to proceed from the top floor down, turning off taps to ensure you’ve thoroughly expelled all the air.

When to Contact a Professional Plumber

Sometimes, the symphony of sounds in your pipes may require a maestro’s touch. If you’ve conducted the air-removal concert to the best of your abilities but still encounter persistent issues or unsettling odours, it’s time to call in a professional plumber.

Their expertise can pinpoint and resolve more complex plumbing concerns that go beyond trapped air.

Maintaining Your Plumbing System Post-Air Removal

After the air has been expelled and peace restored, it’s important to ensure that such disturbances remain a thing of the past. Regular checks and maintaining optimal water pressure can help prevent air from staging a comeback.

Remember, a well-maintained plumbing system, including plumbing pipes, is the key to a silent and efficient water flow.

Summary

As we wrap up this guide, remember that the occasional hiccup in your plumbing system is normal, but persistent noises and erratic water flow should not be part of your daily soundtrack. With the knowledge and steps outlined here, you’re now equipped to confront and conquer the cacophony caused by trapped air. Embrace the tranquility of a quiet plumbing system and the satisfaction of having tackled it yourself.

Frequently Asked Questions

How can I tell if there’s air trapped in my water pipes?

You can tell if there’s air trapped in your water pipes by listening for unusual noises like banging or gurgling sounds and observing erratic water flow, such as sputtering faucets and inconsistent water pressure.

What causes air to get trapped in the plumbing system?

Air can get trapped in the plumbing system due to maintenance work on neighbourhood water lines, issues with the hot water heater, or disruptions in the water supply. It’s important to address these potential causes to prevent air from entering the system.

Do I always need to call a professional plumber to remove trapped air from my pipes?

You can try removing trapped air from your pipes by following a step-by-step guide, but if the problem persists, it’s best to consult a professional plumber.

What should I do if I’ve purged the air from my pipes but still hear noises?

If you’ve purged the air from your pipes but still hear noises, it’s best to contact a professional plumber as it may indicate a more serious plumbing issue.

Meet the author, Lee Devlin

Published on: 28/06/2024

Lee Devlin is the managing director of Homecure Plumbers, London's favourite local plumbing service. Since 2009, Lee's been leading a large team of gas safe plumbing and heating engineers as well as growing a successful business built on quality customer service and workmanship, in a competitive industry within the Capital. He's been in the game for a long time, so he regularly shares his knowledge and experience with the public. His expert tips have been featured in lots of well known publications such as: The Sun, Metro, Insider, Homes And Gardens, Country Living and more!

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