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bathtub drain making gurgling noise

4 Reasons Why Bathtub Drain Making Gurgling Noise

Hearing strange noises in the house can be very unpleasant and annoying. This characteristic gurgling sound in the bathroom is also no exception. Whether it’s coming from the shower or the bathtub, you’ll know right away that it’s not normal. Some problems can cause a bathtub drain making gurgling noise. The question is, what is it and why is it happening in your home?

What Causes Gurgling Sounds in Your Bathroom or Shower?

The drain pipe noise problem must be fixed immediately. Let’s find out why there is gurgling air in the sewer system. The pipes of the sewage system are located on a slope. In addition, they are connected to a vertical section – the riser. During draining, the sewage water forms a kind of piston, which creates pressure on the lower layers of air and vacuum in the upper levels. Because this piston is not rigid, the gasses can overcome it.

They pass through the water stopper, enter the upper part of the pipe and begin to act on the plumbing fixtures. Sometimes the reverse process occurs – the moving water plug ejects air, which creates a significant vacuum in the upper areas close to the fixture outlets.

If this impact becomes large enough, either the odor trap collapses or the trap is drawn in. In both cases, there is a characteristic sound, which is perceived as if the sewer gurgles in a private home.

In this article, we want to give several reasons why drain makes gurgling noise.

Reason

Description

1. Clogged Vent Pipe The vent pipe, which allows air to enter the plumbing system and maintain proper pressure, can become clogged with debris such as leaves or nests. When this happens, air that should escape through the vent is forced back through the drain, causing a gurgling sound.
2. Blocked Drain A blockage in the drain itself, such as hair, soap scum, or small objects, can cause water to drain slowly and trap air bubbles. As the water finally passes through the blockage, these bubbles escape, creating a gurgling noise.
3. Poorly Designed Plumbing System If the plumbing system is not designed with adequate venting or if the vents are improperly positioned, air pockets can form in the drains. These air pockets can cause gurgling sounds as water displaces the air through the system.
4. Full Septic System For homes with a septic system, a full or overburdened septic tank can lead to slow drainage and air being pushed back through the plumbing, resulting in gurgling noises from drains, including the bathtub.

 

How to Fix a Gurgling Bathtub Drain

If your bathtub drain is making a gurgling noise, there are several steps you can take to resolve the issue. Here are some effective DIY methods to help fix a gurgling bathtub drain:

  • Clear Any Clogs
    • Use a plunger to try and dislodge any clogs in the bathtub drain. The gurgling noise often results from air trapped due to blockages.
    • Pour a mixture of baking soda and vinegar down the drain, followed by hot water, to dissolve minor blockages.
    • For more stubborn clogs, use a plumber’s snake or auger to break up and remove any debris.
  • Check and Clean the Vent Pipes
    • If venting issues are causing the gurgling noise, climb to the roof (safely) and inspect the vent pipe for blockages. Leaves, nests, and debris can clog vent pipes, causing air pressure to build up.
    • Use a hose to flush out the vent pipe. The water pressure can help clear out any obstructions.
  • Adjust Water Pressure
    • If the water pressure in your plumbing system is too high, it can contribute to gurgling sounds in pipes. Lowering the pressure can help reduce strain on the system and minimize noises.
    • Consider installing a pressure-reducing valve if your home consistently experiences high water pressure.
  • Install a Drain Trap
    • Adding or checking the functionality of a drain trap helps prevent sewer gases from entering the drain and reduces air pressure, which can cause bathtub drain gurgling.
    • If you already have a trap, ensure it’s not damaged or filled with debris.

When to Call a Professional for Gurgling Noises

If you’ve tried DIY solutions but the gurgling noise in your bathtub drain persists, it may be time to call a professional plumber. Here are some situations where expert help is recommended:

  • Persistent Gurgling Despite Cleaning
    • If the noise continues even after clearing clogs and vent pipes, a more severe blockage or issue within your main sewer line could be the cause. A professional can use specialized equipment to locate and clear deeper blockages.
  • Frequent Gurgling Sounds Throughout the Plumbing System
    • If you hear gurgling sounds from multiple drains (bathtub, sinks, or toilets), this may indicate a larger issue within the plumbing system, such as a blockage in the main sewer line or a broken pipe.
  • Signs of Sewer Backflow
    • If you notice sewage smells, water backing up, or slow drainage in addition to gurgling sounds, there could be a severe issue with your sewer line. Sewer backflow requires immediate professional attention to prevent health risks and property damage.
  • Complex Venting Problems
    • Sometimes, improperly installed vent pipes or complex venting issues cause gurgling sounds. A plumber can assess your venting setup and make necessary adjustments or repairs.
  • Preventative Maintenance
    • If you want to prevent future issues, scheduling regular plumbing maintenance with a professional can help. They can identify potential problems early, keeping your plumbing system in optimal condition.

Calling a professional can save you time and ensure that the gurgling noise in your bathtub drain is resolved safely and effectively, preventing further damage to your plumbing system.

Need Help with a Gurgling Bathtub Drain? Contact POM Plumbing Today!

If you’re struggling with persistent gurgling noises in your bathtub drain or other plumbing issues, don’t wait for the problem to worsen. At POM Plumbing, our skilled professionals are ready to assess and resolve any drainage or venting issues you may be facing. We offer reliable solutions to keep your plumbing system running smoothly, ensuring your home stays safe and comfortable.

Contact us today to schedule an inspection or consultation! Our team will quickly diagnose the problem and provide you with effective, lasting solutions for any gurgling bathtub drain concerns.

FAQ about the causes of gurgling noise in the bathroom drain

How can I fix a gurgling bathtub drain?

To fix a gurgling bathtub drain, try using a plunger or plumbing snake to remove any obstructions in the drain. If that doesn’t work, you may need to call a licensed plumber to diagnose and fix the issue.

Can a gurgling bathtub drain be a sign of a more serious plumbing issue?

Yes, a gurgling bathtub drain can be a sign of a more serious plumbing issue, such as a blockage in the main sewer line or a damaged vent pipe, which requires immediate attention from a licensed plumber.

How can I prevent my bathtub drain from making gurgling noises in the future?

Regularly cleaning your bathtub drain and avoiding flushing foreign objects down the drain can help prevent gurgling noises. Additionally, scheduling routine maintenance with a licensed plumber can help detect and fix any potential plumbing issues before they become major problems.

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