How to Fix a Gurgling Bathroom Sink

You wake up in the morning, go to the bathroom sink to brush your teeth, and hear a gurgling noise. You soon realize that the noise is coming from the sink drain. What do you do?

how to fix a gurgling bathroom sink

Fortunately, there are a few ways to fix a gurgling bathroom sink. In this blog post, we will discuss some of the most common methods. So keep reading to learn more about how to fix a gurgling bathroom sink.

Summary: In order to fix a gurgling bathroom sink, first check the water pressure. If the pressure is low, then the sink may need to be replaced. If the water pressure is normal, but the sink still gurgles, then the problem may be with the drain. If the sink drains slowly or if the water spills out from under the sink when it is plugged, then the drain may need to be replaced.

What Is the Gurgling Noise in A Bathroom Sink?

The gurgling noise you sometimes hear coming from your bathroom sink is caused by air bubbles. When water flows down the drain, it can create a vacuum. This vacuum can cause air bubbles to form in the water. When these air bubbles reach the surface, they make a gurgling noise.

The most probable cause of the gurgling sound is a clog in the drainpipe. When water tries to flow through a blockage, it creates air bubbles that get trapped in the drain. These bubbles escape through the P-trap (the U-shaped pipe underneath the sink), causing the gurgling sound.

In most cases, the best way to fix the problem is to remove the clog simply. However, if the clog is severe, you may need to call a plumber for assistance.

Why Should You Fix a Gurgling Bathroom Sink?

A gurgling bathroom sink is more than just a nuisance—it’s a sign that your drains are not functioning properly. Water drains slower than usual can cause a build-up of waste and debris in the pipes. This can lead to clogs, which can then cause water damage to the sink and, eventually, backups. If you ignore a gurgling sink for too long, you may face serious plumbing problems.

If you have a gurgling bathroom sink, don’t despair! The fix is usually fairly simple. You can try running hot water down the drain to loosen any clogs or use a plunger to dislodge the blockage. If neither of these methods works, you may need to call a plumber to clear the drain for you. In short, it’s important to address a gurgling bathroom sink as soon as possible to avoid bigger problems down the road.

Use a Plunger

5 Methods to Follow on How to Fix a Gurgling Bathroom Sink

Method 1: Check the P-trap

If your bathroom sink is making strange gurgling noises, the first thing you should do is check the P-trap. The P-trap is a small piece of plumbing located underneath the sink. It’s responsible for trapping debris (like hair or dirt) so that it doesn’t enter the plumbing system. If the P-trap is clogged, it could be the source of the gurgling noise.

To check the P-trap, remove the drain stopper and look inside the trap. If you see a lot of debris, then that’s likely what’s causing the gurgling noise. To clean the P-trap, simply remove it and flush it out with water.

Method 2: Inspect the Vent Stack

There are a few potential reasons why your bathroom sink might make gurgling noises. One possibility is that there is a blockage in the vent stack. The vent stack is a pipe that goes from the drains in your house up to the roof. Its job is to let air into the drain system so water can flow smoothly. If the vent stack is clogged, it can cause gurgling noises in your bathroom sink.

To inspect the vent stack, first, locate the cleanout plug. The cleanout plug is a small cap located on the side of the vent stack. Once you have located the cleanout plug, unscrew it and remove it from the vent stack.

Locate the Cleanout Plug

Method 3: Clean the Drain

If your bathroom sink is still gurgling after you’ve checked the P-trap and vent stack, then the next step is to clean the drain. A dirty or clogged drain can cause many problems, including gurgling noises.

To clean the drain, you’ll need to remove the drain stopper and use a plunger to force water through the drain. If the plunger doesn’t do the trick, you can try using a drain snake to remove any debris that might be causing the problem.

Method 4: Check the Sewer Line

If your bathroom sink is still gurgling, there’s a good chance that the problem is in the sewer line. If the sewer line is blocked, it can cause many problems, including gurgling noises.

The best way to check the sewer line is to call a plumber and have them come out to look. They will be able to use a camera to inspect the sewer line and determine if there is a blockage. If there is, they will be able to clear it out and fix the problem.

Call a Plumber

Method 5: Contact a Professional

Last but not least, if you have tried all the above methods and your gurgling bathroom sink is still not working properly, it may be time to contact a professional. A plumber will be able to diagnose the problem and provide you with a solution quickly. A good plumber will also be able to provide you with tips on how to maintain your bathroom sink in top condition.

Don’t hesitate to contact a professional if your bathroom sink is giving you trouble. Gurgling sounds can signify a serious problem, and it’s always better to be safe than sorry.

That’s it! You’ve now learned how to fix a gurgling bathroom sink. By following the methods above, you should be able to get your sink back to working properly in no time.

5 Common Causes of a Gurgling Bathroom Sink

A gurgling bathroom sink can be a nuisance, and it can also be a sign of a bigger problem. Here are five common causes of a gurgling sink:

A Clogged Drain.

This is the most common cause of a gurgling sink. If your drain is clogged, the water has nowhere to go but up, causing the gurgling sound.

A Faulty P-trap.

The P-trap is the part of the plumbing system that prevents sewer gases from entering your home. If the P-trap is damaged or not working properly, sewer gases can escape and cause the gurgling sound.

A Vent Stack Blockage.

The vent stack is responsible for allowing air into the plumbing system so that water can flow freely. If the vent stack is blocked, it can cause the water to back up and create a gurgling sound.

A Collapsed Sewer Line.

If your sewer line collapses, it can cause sewage to back up into your home and create a gurgling sound in your bathroom sink.

An Earthquake.

Believe it; an earthquake can cause a gurgling sound in your bathroom sink. This is because the shaking from the earthquake can dislodge debris in the plumbing system and cause a blockage.

If you’re hearing a gurgling sound coming from your bathroom sink, it’s important to take action to determine the cause. Ignoring the problem could lead to serious damage to your home’s plumbing system. Keep reading for more information about how to fix a gurgling bathroom sink.

The Different Types of Drains and How to Clear Them

If you have a gurgling bathroom sink, it’s important to identify the type of drain you have to clear it effectively. There are four main types of drains:


P-traps are the most common type of drain and are typically found under bathroom sinks. They are curved and have a small opening at the bottom that allows water to drain. To clear a clogged P-trap, you will need to remove the U-shaped portion of the trap and clear the blockage.

P-traps Are the Most  Common Type of Drain


S-traps are less common than P-traps and are typically found in older homes. They are similar to P-traps, but they have a straight section instead of a curved one. To clear a clogged S-trap, you must remove the entire trap and clear the blockage.

Drum Traps:

Drum traps are less common than P-traps and S-traps and are typically found in homes built before the 1950s. They are cylindrical and have a small opening at the bottom that allows water to drain. To clear a clogged drum trap, you will need to remove the cap at the top and then use a plunger to unclog the opening.

Tips for Keeping Your Drains Clear and Free of Clogs

If you’ve ever dealt with a clogged drain, you know how frustrating it can be. Water backs up, causing messes and flooding, and the problem can be difficult to fix. Fortunately, there are a few simple steps you can take to help keep your drains clear and free of clogs.

One of the most important things you can do is avoid dumping grease down the drain. When hot grease cools, it solidifies and can adhere to the sides of the pipe, gradually restricting flow. So instead, pour used cooking oil into a container and dispose of it in the trash.

You should also avoid putting coffee grounds, eggshells, or other solid items down the drain. These items can collect and cause blockages. To help keep things flowing smoothly, run hot water down the drain for a few minutes each week.

If you do find yourself dealing with a clog, there are several homemade solutions you can try before calling a plumber. For example, boiling water poured down the drain can help melt grease and break up small clogs. A mixture of baking soda and vinegar can also effectively clear away build-up. With a little preventative care, you can keep your drains flowing freely all year.

Frequently Asked Questions

Do I Make My Bathroom Sink Stop Gurgling?

However, there are a few things that you can do in order to stop your bathroom sink from gurgling. First, make sure that the drain pipe is free of blockages by using a plunger or snake on a regular basis. Second, consult with a plumber about installing a new drainage system if yours seems to be struggling more than usual. Finally, check the level of water in your reservoir and fill it up as needed so that it doesn’t overflow onto the floor below.

Why Does My Sink Gurgle When Dishwasher Drains?

The first issue is usually caused by debris build-up in the sink’s drainpipe. This blockage disrupts the flow of water and causes the basin to splash as it tries to reach the drainage system. To fix this, try using a plunger or an auger attachment to clear out any gunk from the pipe before each use.

If there is too much slop (water) buildup in the dishwasher hose connection at either end, then it may be time for a replacement – especially if you have been struggling with clogged dishwashers for years! In order to check whether this is necessary, disconnect one end of the hose from both sinks and wait 15 minutes – if there is no improvement, then you will likely need new hoses installed on both sides of your house.

What to Do if Drains Are Gurgling?

This is because if the drain is blocked, water can start backing up and could cause serious flooding in your home. By calling a professional right away, you’ll prevent any potential damage and help speed up the restoration process.

Another reason to call an expert ASAP is if you suspect that there’s something wrong with the drainage system itself. This may occur if there are broken or damaged pipes underground or if there’s something obstructing the flow of water.

Can a Dishwasher Causes Sink to Clog?

Generally, a dishwasher does not cause the sink to clog. In fact, the dishwasher is designed to clean your dishes and remove any food particles that may have accumulated in the sink. Occasionally, if the drain in the sink is not able to handle the load of water from the dishwasher, this may result in a sink clog. If this is the case, you may need to call a professional to unblock the drain and fix the issue.

Can You Snake a Drain With a Garbage Disposal?

No, you cannot snake a drain with garbage disposal. Garbage disposal is designed to grind food down so that it can be disposed of safely, and snakes are not effective at doing this.


If you have a gurgling bathroom sink, there is no need to panic. Instead, you can do several things to fix the issue and get your sink flowing smoothly again. Follow these simple methods, and you will go to a quiet bathroom once more. Thanks for reading our post about how to fix a gurgling bathroom sink.

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