Why Your Drain Pipes Are Gurgling and How to Fix It

A gurgling drain is the source of many common plumbing issues, making them a symptom that shouldn’t be ignored. It’s typically a sign there’s a blockage or an issue with the plumbing vent system. Luckily, you don’t have to figure it all out on your own.

The pros at Sinclaire Home Services are here to answer your questions about why your drain gurgles and what you can do to address it. Let’s dive into the causes of this problem and explore some potential fixes.

Why is My Drain Gurgling?

When water flows through the drain, it displaces air in the pipes, and if the air cannot escape through the vent, it will force its way back up, causing that gurgling sound. Here are the most common reasons your drain pipes are gurgling, along with factors that might be contributing to the problem:

Partial Blockages

Partial blockages are one of the most common causes of a gurgling drain. These blockages are often the result of debris such as hair, soap scum, grease, or food particles accumulating in the pipes over time.

As water attempts to pass through the restricted area, it creates turbulence, leading to air pockets and gurgling sounds. Regular cleaning and mindful disposal of waste can help prevent these blockages.

Vent Pipe Issues

The vent pipes in your plumbing system play a crucial role in maintaining proper airflow. They allow sewer gases to escape and help equalize the pressure in the drain pipes. If a vent pipe becomes blocked or damaged, it can disrupt this balance, causing air to be forced back up through the drain. Common obstructions include bird nests, leaves, or other debris. Ensuring your vent pipes are clear and functional is essential for preventing gurgling and maintaining the health of your plumbing system.

Main Sewer Line Blockage

A blockage in the main sewer line is a more severe issue that can affect multiple drains in your home. This type of blockage can be caused by tree roots infiltrating the sewer line, a buildup of debris, or a collapsed pipe. When the main sewer line is obstructed, wastewater cannot flow freely, leading to backup and gurgling noises in your drains. Addressing main sewer line blockages often requires professional intervention to prevent extensive damage and health hazards.

Poor Drain Venting

Proper venting is critical for your plumbing system to function correctly. Poorly designed or improperly installed venting can result in inadequate airflow, leading to negative pressure in the pipes. This negative pressure can cause air to be drawn back through the drains, resulting in gurgling sounds. Ensuring your plumbing system is adequately ventilated can prevent these issues and improve overall performance.

Clogged Sewer Lines

In addition to main sewer line blockages, localized clogs within the sewer lines can also cause gurgling. These clogs might not completely block the flow of water but can significantly reduce the drainage capacity, leading to air being trapped and released through the drain. Regular maintenance, such as hydrojetting, can help keep sewer lines clear and free-flowing.

Incorrect Pipe Sizing

Sometimes, the issue lies in the plumbing design itself. If the pipes in your system are not correctly sized for the amount of water flow, it can create drainage problems and gurgling sounds. Incorrect pipe sizing can lead to water backing up and air being forced out of the drain. Consulting with a professional plumber to ensure your system is properly designed can help prevent these issues.

How to Fix a Gurgling Drain

Before calling in the professionals, there are a few simple fixes you can try to address a gurgling drain.

Use a Plunger

A plunger can be an effective tool for clearing partial blockages. Place the plunger over the drain and create a seal, then push and pull to create suction that can dislodge the blockage. Be sure to use a plunger specifically designed for sinks or tubs, as toilet plungers are shaped differently.

Clean the P-Trap

The P-trap is the curved section of pipe under the sink that can accumulate debris over time. Place a bucket underneath to catch any water, then remove the P-trap and clean out any gunk. This can help improve drainage and reduce gurgling sounds.

Use a Plumbing Snake

A plumbing snake, or an auger, is a tool that can reach further into the drain to clear blockages. Insert the snake into the drain and turn the handle to break up or remove any obstructions. This can be particularly useful for stubborn clogs that a plunger cannot remove.

Check the Vent Pipe

If you suspect the vent pipe might be the issue, you can check it yourself if you have access to the roof. Ensure there are no visible blockages such as leaves, debris, or nests. If you find a blockage, carefully remove it to allow air to flow freely.

When to Call a Professional

While some gurgling drain issues can be resolved with simple fixes, others may require professional intervention. If you’ve tried the above methods and the problem persists, or if multiple drains in your home are gurgling, it’s time to call a licensed plumber.

They can inspect your plumbing system, identify the root cause of the issue, and provide a lasting solution.

Signs You Need Professional Help

• Persistent gurgling despite attempted fixes.
• Multiple drains gurgling at the same time.
• Slow drainage across several fixtures.
• Foul odors coming from the drains.

Tips to Prevent Drain Gurgling in the Future

Regular drain maintenance services are the most effective way to prevent future drain gurgles. Here are a few tips you can do outside of that to keep your drains clear and functioning properly:

• Avoid pouring grease down the drain: Grease can solidify and cause blockages. Dispose of it in the trash instead.
• Use drain covers: Prevent hair and debris from entering the drain by using covers or strainers.
• Regularly clean your drains: Use a mixture of baking soda and vinegar to clean and deodorize your drains every few months.
• Schedule regular plumbing inspections: A professional plumber can identify potential issues before they become major problems.

Solve a Gurgling Drain For Good with Sinclaire Home Services

If you experience persistent drain gurgling, it likely can’t be solved for good with a DIY solution — it’s best to call professional plumbers in Walpole, MA like Sinclaire Home Services. Our team of licensed technicians will diagnose and resolve the underlying problem in no time.

Our expert team of drain cleaning in Walpole, MA will put a stop to that annoying drain pipe gurgling sound once and for all. Give us a call at (508) 668-8200 or contact us online to learn more or schedule your plumbing service today!