Why Does My Kitchen Sink Gurgle?

Why Does My Kitchen Sink Gurgle

In this post, i will be answering your question of why does my kitchen sink gurgle so read on..

If you’ve ever walked by your kitchen sink and noticed it making a strange gurgling noise, you might wonder if there is something wrong. There are three main reasons why this happens including water pressure changes, plumbing problems, or the garbage disposal being too full. This blog post will discuss what can cause these issues and how to fix them!

The first thing that could be happening is that the water pressure in your home has changed for whatever reason. When this happens there may be air bubbles trapped inside of the pipes which cause the sound when they escape. The best way to solve this problem is to simply turn off all of your faucets until everything goes back to normal. If you have any leaks anywhere in your home then fixing them

Why Does My Kitchen Sink Gurgle?

Ever hear a gurgling sound coming from your kitchen sink and wondered what was going on?

The most common causes of water gurgling in the pipes are:

  • Depending on where the food particles end up when they are washed down your drain, gurgling in your kitchen sink can indicate a problem.
  • If water gurgles at the very end of the sink’s drain, it probably means that you have too much hair and soap scum in your trap. Your trap is the curved pipe under your sink leading to the main stack. It’s designed to hold standing water so all those bits of hair and debris don’t make their way into the main sewer line.
  • However, if there is too much volume in this short section, it creates a siphon effect, resulting in gurgling when you use water at any point past that trap. Cleaning out your drain once or twice a month should solve the problem.
  • A much less common cause of gurgling in your kitchen sink is a clogged vent pipe.
  • This comes into play if you have an older, two-story house where the drain line from the upper level drains to the same stack as that for the first floor; or if you live in newer construction and there’s no vent stack (a 4″ diameter pipe topped with a 90 degree elbow leading out through your roof) serving that section of drain line.
  • The venting keeps sewer gases at bay by allowing air into the system via a positive pressure that keeps water flowing freely down and out of your drain pipe. The fact that water gurgles at all points past a sink trap indicates too much volume, but this isn’t usually a problem because you most likely have a vent stack serving the drain line for that section.

If there is no vent stack at all (or it’s clogged), however, then water with nowhere to go will back up into the sink and drain in an extremely slow trickle or not at all. It won’t be diverted into another pipe like when there is too much volume in your kitchen sink trap, so it’ll simply sit there until you fix the problem (which can take anywhere from several minutes if simple blockage to several hours if tree roots are involved).

There are three ways to solve this issue:

  • You can install PVC vents on each floor your house if one doesn’t already exist.
  • You can install a vent stack from the roof down to your drain line, or lastly
  • You can have a plumber snake out the blockage and open up your vents as needed. If you choose option 3, be aware that this procedure will likely take multiple trips until the pipes are cleared all the way through.

The final cause of gurgling in kitchen sink drains is water pushed back up into your house due to high pressure caused by an accumulation of clog-causing material in the main sewer lines coming from other parts of your house.

This problem is generally most common with low flow fixtures like low capacity toilets (e.g., 0.6 gallons/flush or lower), low flow faucets (2.2 gallons/minute or lower), and showerheads that restrict water to less than 2.5 gallons per minute.

These fixtures are great for conserving water, but you have to remember that they’re not intended for high volume use like flushing large amounts of waste down the toilet or having several people take showers back to back. Keep this in mind especially if your sewer line has a history of problems because it could be an indication that you have an obstruction further up the line.

If so, there’s not much you can do besides getting your sewer lines snaked on a regular schedule by professionals who know how to clear out these kinds of obstructions before they cause problems with your house’s water pressure tank and its associated components.

Oftentimes, a plumber can check for clogs by snaking the sewer lines themselves without too much difficulty, but if major digging will be involved or if there is any chance that it could hit a main line then you should consider calling in a professional with the right equipment to ensure everything will go smoothly and safely.

In most cases of high water pressure affecting your kitchen sink’s drain, however, simply upgrading your fixtures to those rated for higher volume usage will solve the problem.

Kitchen sink drains are more complicated than they might seem from an outside perspective. Fortunately, problems aren’t all that common so long as you know what signs to look out for when something seems wrong.

If nothing in this article worked for you, or if your drain is clogged and you don’t know how to fix it, call in a plumber. They can solve any problem you might have with your kitchen sink’s drain no matter what the root cause turns out to be.

how to fix a gurgling kitchen sink

The first thing you can do is to pour baking soda in the drain.

The best way is to pour it directly from a box into your sink. Turn on the water and let it sit for about 15 minutes.  

  • Vinegar will dissolve any clog caused by food particles. The acidity of the vinegar helps to break down anything with a low pH balance, such as fatty deposits, soaps or dirt.  
  • Pouring down half a cup of vinegar followed by leaving it for 10 – 15 minutes can help to clear up small blockages caused by soap scum, hair and other gunk that has accumulated over time.
  • After you have waited long enough, turn on your tap and very quickly pour down boiling hot water from a kettle into the drain. Boiling water will displace the air in the pipe which helps to dislodge any clogs caused by food particles or soap scum.
  • Disassemble the drain system. Take off the trap and clean it thoroughly, including all of its connections with a brush.  Take out other parts carefully if you need to get rid of an obstruction . Do not leave plunger marks on chrome plated surfaces as they are very hard to remove!
  • You can use your saturated rag to wipe down parts that can’t be put into water, such as rubber gaskets etc.. The baking soda/vinegar solution will help to break up grime while using your toothbrush makes sure there’s nothing stuck! Then you should rinse everything with hot water.
  • Use a wire (coat hanger) to dislodge anything that remains in the drain pipe . Straighten one end of your wire or use a paper clip and poke it into the pipe, then move it around until you hear a gurgling sound again. This should clear the rest of any debris that has been lodged in there from previous attempts.  
  • Clean the sink trap again after putting everything back together so you don’t have another clog build up later on! You can do this by pouring boiling hot water down your sink followed by half a cup baking soda once cold water is running through it.
  • Then rinse it out with cold water several times to remove all traces of vinegar or baking soda.
Why Does My Kitchen Sink Gurgle

Why is the kitchen sink making a gurgling sound?

It is common that kitchen sinks make a gurgling sound when a dishwasher, washing machine or other water using appliance empties its contents into the sink. This happens when too much f luid leaves in a short time period causing the pipe from the drain to go up and down rapidly which is what causes the sound of rushing water.

The gurgling sounds can also be caused by having unnecessary items in your garbage disposal  drawer under your sink.

How do I stop my sink from gurgling?

You can stop water from gurgling in your kitchen sink by not letting it go down too fast. Putting a strainer over the drain helps prevent food particles from going into the garbage disposal  and causing clogs that will eventually lead to gurgling sound.

Another easy way to stop kitchen sink gurgling is to make sure the trap under the sink is not filled up with hair or soap scum, which can cause fluid to back up and make noises when it drains down.  


If you are experiencing water coming up from your kitchen sink, there is a chance that the P-trap may be clogged. A plumber should inspect the drain for any blockages or debris to help solve this problem. The gurgling sound will stop once all of the air has been pushed out and gravity pulls the water back down into place.

References : Why is My Sink Gurgling?

Noah Burns

I am Noah Burns- The Guy behind mybestsix.com. I love to experiment and test new products to create informative contents for readers like you. I aim to make this site a leading source of information and reviews to help consumers make more informed buying decisions.

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