Experiencing inconsistent water pressure or strange gurgling sounds? Air trapped in pipes is often the culprit. This common plumbing issue affects homeowners worldwide, causing disruptions in water flow and even potential damage to water heaters. Understanding the role of bleed valves in releasing this trapped air is crucial. A simple understanding of this issue allows you to avoid a service call from a plumber like Tom Silva from This Old House.
Image taken from the YouTube channel People·WHYS , from the video titled How do you get air out of water pipes in your house? .
Air Trapped in Pipes? A Simple Fix to Restore Flow!
Air trapped in pipes can be a frustrating plumbing problem. It can cause sputtering faucets, reduced water pressure, and noisy pipes. Luckily, often, the solution is relatively straightforward. This guide will walk you through identifying if you have air trapped in your pipes and how to safely and effectively remove it.
Identifying Air Trapped in Your Pipes
Before you start any fixes, it’s essential to confirm that air is indeed the problem. Here are some common symptoms:
- Sputtering Faucets: A faucet that spits and sputters, especially when first turned on, is a classic sign. This is often accompanied by inconsistent water flow.
- Reduced Water Pressure: If your water pressure seems noticeably lower than usual, and you’ve ruled out other potential causes (like a municipal water issue), air pockets could be the culprit.
- Noisy Pipes: Gurgling, banging, or whistling sounds coming from your pipes, especially after using a faucet or flushing a toilet, can indicate trapped air. This sound is often described as a "water hammer" when severe.
- Inconsistent Hot Water: Sometimes, trapped air can affect your hot water supply more than your cold. This might manifest as inconsistent temperatures or a delay in hot water reaching the faucet.
It’s important to distinguish these symptoms from other plumbing problems like mineral buildup, leaks, or a malfunctioning water pump (if you have a well).
Causes of Air Trapped in Pipes
Understanding how air gets into your pipes can help you prevent it in the future. Some common causes include:
- Plumbing Work: Anytime your plumbing system is opened up for repairs or installations, air can enter the lines.
- Low Water Levels: In areas with fluctuating water pressure, especially in older systems, low water levels in the main supply can allow air to be drawn into the pipes.
- Water Main Breaks/Repairs: When the water company performs repairs on the main water line, it can introduce air into your home’s plumbing.
- Well Issues: If you have a well, a malfunctioning pump or low water levels in the well itself can draw air into the system.
How to Bleed Air From Your Pipes: A Step-by-Step Guide
This is the most common and effective method for removing air trapped in pipes.
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Identify All Faucets and Fixtures: Make a list of all faucets (both hot and cold), showers, tubs, and outdoor spigots in your home.
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Start at the Lowest Point: Begin with the faucet or fixture that is located at the lowest point in your house. This is typically a basement faucet or an outdoor spigot.
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Open the Cold Water Faucet: Fully open the cold water faucet at the lowest point. Let the water run until it flows steadily without any sputtering or air bubbles. This may take several minutes.
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Work Your Way Upward: Systematically move to the next highest faucet or fixture in your house. Repeat step 3 for each cold water faucet, working your way up to the highest point in your home.
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Repeat for Hot Water: After bleeding all the cold water lines, repeat the process for the hot water lines, starting again at the lowest point and working your way up.
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Flush Toilets: Flush all toilets in your home several times to ensure no air is trapped in the toilet fill valves.
Important Considerations:
- Water Hammer Arrestors: If the problem persists after bleeding the lines, consider installing water hammer arrestors. These devices help absorb the shock caused by water stopping suddenly, reducing noise and preventing pipe damage.
- Older Homes: In older homes with galvanized steel pipes, mineral buildup can contribute to air pockets. While bleeding the lines may provide temporary relief, professional cleaning or replacement of the pipes might be necessary in the long run.
- If Problems Persist: If you’ve tried bleeding the lines and the problems persist, it’s best to consult a qualified plumber. There could be a more significant issue, such as a leak or a problem with your water pressure regulator.
- Safety First: Always be mindful of water splashing and potential slippery surfaces.
Special Cases: When to Consult a Plumber
While the above method often resolves the issue of air trapped in pipes, certain situations warrant professional help:
- Recurring Air Pockets: If you find yourself frequently bleeding your pipes, there’s likely an underlying issue that needs to be addressed by a plumber.
- Suspected Leaks: If you notice water damage, unexplained moisture, or a sudden increase in your water bill, a leak could be introducing air into your system.
- Complex Plumbing Systems: If you have a complex plumbing system with multiple zones or specialized fixtures, it’s best to leave the troubleshooting to a professional.
- Water Heater Issues: Trapped air near the water heater can lead to overheating or damage. If you suspect air is affecting your water heater, contact a plumber immediately.
FAQs About Air Trapped in Pipes
This FAQ section addresses common questions about air trapped in your plumbing and how to fix it, as discussed in the main article.
What causes air to get trapped in my pipes?
Air can enter your pipes in several ways. Common causes include recent plumbing work, low water pressure drawing air in, or even the water company working on the mains. Sometimes, air trapped in pipes naturally accumulates over time.
How do I know if I have air trapped in the pipes?
The most obvious sign is sputtering or gurgling noises when you turn on a faucet. You might also experience inconsistent water flow, where the water comes out in bursts. These symptoms often indicate air trapped in your pipes.
Will air trapped in pipes eventually clear itself?
Sometimes, air trapped in pipes will dissipate on its own as you use the water. However, larger airlocks can persist and require intervention to clear. The described method of opening all faucets can help if it doesn’t clear itself after a reasonable time.
Is it safe to ignore air trapped in my pipes?
While generally not dangerous, ignoring air trapped in pipes can reduce water pressure and cause annoying noises. In rare cases, it can contribute to water hammer and potentially damage your plumbing system over time. It’s best to address the issue.
So, next time you hear those telltale gurgles, remember these tips! Getting rid of air trapped in pipes can be easier than you think. Hopefully, now you can tackle this issue without calling in the pros!