Why Does My Bathroom Sink Smell Like Rotten Eggs?

A smelly bathroom can be a nightmare as you use it in the first place in the morning? This is not acceptable to anyone. Clogged drains are one of the most common problems in kitchens and bathrooms that lead to a stinky odor coming out whenever you use them. So if you are thinking why does my sink smell like rotten eggs this is probably the reason. 

Most often, the cause of the smell is the blockage in your sink or bathroom drain. Waste, hair, or soap residue do not get flushed that easily which makes them stuck to your drain and causes a nasty rotten egg-like smell every time you turn off the water. 

So before calling the plumber there is a pretty good chase that you can fix the problem yourself. Here we have mentioned some of the easiest and most effective hacks to get rid of smelly bathroom sinks and drains that you should give a try and see which one works best for you. 

Why Does My Bathroom Sink Smell Like Rotten Eggs?

There’s nothing worse than walking into your bathroom in the morning only to discover that your sink smells like rotten eggs. So the first thing you need to know is where the smell is coming from in the sink. Is it your water itself or your drain?

First, pour some water into a cup. Then take it somewhere to smell it. If you can smell the sulfur, go ahead and remove the rest of the sink in your bathroom. If the water smells fine the chances are that your drain is the culprit.

Typical Causes Of Sink Drain Smell:

  • A clogged drain is one of the reasons your sink may smell
  • Another reason can be that your drain hasn’t been used in quite some time
  • Or your sink doesn’t have a drain trap or hasn’t been installed correctly
  • Or the inlet of your sink may be clogged that you didn’t think of

Smelly Bathroom Sink Drains Remedy 

When a bathroom sink smells like a sewer that is not a good sign. Whenever you use it the odor will make you claustrophobic. So here is how you can get rid of that nasty smell using some home remedies:

  • First, turn on the hot water of your sink to wash everything out down there
  • Now dunk about a half box of baking soda into the sink and dunk in a bottle of cleaning vinegar onto the baking soda so it creates a lot of foam
  • Do not pour all the vinegar at once
  • Gradually pour it
  • Lastly, run some more hot water to clean everything out
  • Apply this hack once a week 

Why Does My Bathroom Always Smell Like Poop?

There are three main reasons why you’d have a sewer odor in your bathroom. So you need to check three places that might be stinking your bathroom

  1. First and foremost you should check the shower drain to make sure there is no sewer backed up in your shower. Use a flashlight to do the investigation
  2. Then turn the water off to see if maybe the p-trap is dried up. Because as you know that the p-trap holds the water which allows water to go through and prevent the gasses from coming from ing up. But if the p-tray is dry then the odor will surely come right back up
  3. Check if there are any loose pipes or clean-out caps that have come undone. Those can create an area where the sewer gas will come right in

Why Does My Sink Smell When I Run Water?

This is probably happening because of the drain clog of your sink. Sometimes debris builds up in the trap, the hook that you see at the bottom of your sink. And The way to fix that one is to use a Drano product and put it in there by following the instructions and the odor will be gone. 

However, sometimes the problem is caused by the crud. Most bathroom sinks come with an overflow inlet and the purpose of this thing is if you leave the tap running and forget about it the water will drain off through the inlet. Beneath that inlet is a reservoir that drains down to the main and this is where debris has the potential to build up. To fix this problem flush the overflow tank and penetrate the reservoir with brushes. 

Why Does My Bathroom Smell Like Sewage? 

If your bathroom is smelling like sewage then you need to find the exact reason and place it’s coming from. Because if you can find the exact place you will be able to solve it as soon as you can. So before calling a plumber try to do it yourself. 

Check The Floor Drain

Use a flashlight to check your floor drain and look if it’s clogged or full of debris. You can also try to smell it if you can find anything from there. Usually, plumbers use methane gas detectors to do this kind of inspection. Also, try to find if your floor drain has dried up. Because any of these reasons can cause your bathroom to smell like a sewer.

Bathroom Sink

It is another place that causes the smell problem so you should check that out in the first place. Usually, there are a couple of places on a sink that can cause this problem. Like if you haven’t used your sink for months the water which is supposed to be on the o-trap will dry up and give room for the drain doors to come through that trap.

There can be a buildup in the p-trap like soap, grease, or hair can get stuck in the p-trap causing it to not function properly. If this is the case you might need to clean it or replace it completely and in some cases. 

Another part of the bathroom sink that can create an odor is the inlet which is the tiny little hole under the faucet area. There are times when you open your faucet and forget to close it. So what happens then. The incessant water goes through the inlet to not let the sink overflow. So that’s why it’s pretty common for debris buildup in that place. 

Leaky Toilet 

Oftentimes we don’t even realize that our toilet is leaking from underneath and when we do it’s too late to save it yourself. So check the sides of your toilet and if you find any moisture outside then it’s probably leaking. This thing happened because there is a wax ring that is supported to be installed underneath the toilet which prevents any leakage. So if you don’t have one this is probably the reason for that faulty smell. 

What Is The Best Bathroom Drain Odor Eliminator 

If you have a drain that’s smelling kind of funky then you can use some of the most effective home remedies and products laying around your kitchen?

Vinegar And Baking Soda 

These are probably the best and most used DIY hacks that people use to clean many things all around the house. So you can use it to get rid of odor with this too. Pour a cup of baking soda onto your bathroom drain and two cups of vinegar and let it foam for a minute or so. Then run hot water directly onto the drain to clean that out. It will instantly stop smelling.

Sault And Hot Water

Use 1 cup of salt and hot water onto your drain and leave it for eight hours. This will help eliminate the odor by clearing any clogs or debris.

Drain Cleaner

There are many types of drain cleaners on the market so choose anyone of your liking. Pour a cup of drain cleaner into your drain and wait for 2 hours. Then run hot water to clean out the product. 

Sachets Citric Acid

Take a cup of hot water and pour in half a cup of citric acid. Then pour the mix straight into your drain and wait overnight. This will dissolve debris and unclog your drain so it will not smell. 

Washing Powder

Pour a cup of washing powder onto your sink drain. Leave it overnight. The washing powder binds with clogged grease. Run some hot water to rinse.  

What Is The Best Shower Drain Deodorizer

Deodorizer Ingredients 
Liquid Plumr Sodium hydroxide, sodium hypochlorite, and surfactant
Draino Max Gel Sodium hydroxide, sodium hypochlorite, and silicon
Pure Lye NaOH, sodium hydroxide, KOH, and potassium hydroxide
Drain sticks Oxapanone, homopolymer, oxide, sodium sulfate, wheat flour, dye, lipase, bacteria culture, etc.
Drain & TrapPatent bacteria
Clobber Sulfuric acid
Transchem Muriatic acid 

How To Get Rid Of The Eggie Smell In The Bathroom 

If you smell a noxious odor inside your bathroom chances are sewer gas is escaping from the drainage system. It smells gross and the methane and bacteria it contains can be dangerous to your health causing headaches or even more serious ailments. Before you call the plumber use this simple DIY hack to solve it yourself:

Step 1 

Use a screwdriver to remove the trap. Pour a cup of white vinegar into the drain and ¼ cup of baking soda. Let that sit for 2 hours with the bathroom door closed. 

Step 2

Slowly pour hot water down the drain. After 15 minutes have passed, run cold water for 10 minutes to thoroughly rinse the vinegar down. Don’t skip this part at all.

Step 3

Pour half a cup of chlorine bleach into the drain and let it sit for another 2 hours. Pour another gallon of hot water slowly and turn on the water again for 10 minutes. By now the underwater should be standing in the u-curve of the p-trap. Lastly, pour 4 ounces of mineral oil and it will float on the water in the trap and slow evaporation.  

Why Does My Bathroom Drain Smell Like Sewer? 

  • Clogged sink drain pipe
  • Poorly installed vent pipes
  • Broken P-trap
  • Dry drain 

How To Resolve A Smelly Bathroom Sink 

If you are smelling a foul smell each time you go to your bathroom sink and turn on the faucet. That didn’t sound quite good and might even ruin your whole day. If there’s a smell then there’s something wrong with your sink drain or the p-trap or the inlet hole, etc.  

Using a sink drain cleaner can be a great solution if you have one. But if you don’t have one and also don’t want to go to the store to get one then we have a trick to save your day. Baking soda and vinegar is a pretty common household item that almost every household has. So why not use those.

Take a cup of baking soda and pour it straight into your sink drain and gradually add the vinegar so it bubbles over. Let it sit for 2 to 3 hours and then rinse your sink drain with hot water. Then run cold water onto your sink drain for 10 minutes. Do not skip this part. When you are done add a capful of mineral oil to your drain and let it sit for an hour. This will prevent the odor from coming out through the water.

How Do You Neutralize Sewer Smell? 

  • Use baking soda and vinegar mixture and pour into the drain
  • Use mouthwash onto your sink drain
  • Use chemical drain deodorant 
  • Unclog drain pipes
  • Repair any dry drain 

Final Verdict

at the end of this article on why my bathroom smell like eggs, you have understood all the reasons that could make your whole bathroom smell like rotten eggs, sewer, gassy, etc, and how you can eliminate that smell without calling a plumber.

Frequently Asked Questions (FAQ)

How Do I Get The Rotten Egg Smell Out Of My Bathroom Sink?

The easiest way to get rid of the rotten egg smell from the bathroom sink is by using one part of baking soda with two parts of distilled vinegar. Then wait for a couple of hours and run hot water on the sink drain. Then run cold water for 10 minutes. 

How Do I Stop My Bathroom Sink From Smelling?

To stop your bathroom sink from smelling you need to find out the reason first so take a look at the drain, the p-trap, and the inlet if it’s clogged or not. If it’s clogged then unclog it. Use liquid drain cleaner and pour a cap full stair to the sink drain and wait overnight. Then rinse with hot water. Your drain will stop smelling.

How Do You Get Rid Of The Sewer Smell In The Sink?

To get rid of the sewer smell in the sink use half a cup baking soda, half a cup salt, and slowly pour 2 cups of vinegar and let it sit overnight. Then pour a gallon of hot water onto the drain. Pour a cap full of bleach onto the drain and wait for 10 minutes. Then rinse with hot water. Lastly, run cold water for 10 minutes so all the chemicals are out if your drain is cleaning the clogs and debris out.

Why Does Only One Sink Smell Like Rotten Eggs?

The most common and main reason for a smelly sink is having a clogged sink drain or a dry one perhaps. So if you are smelling rotten eggs from your sink clean it with baking soda and vinegar. Or you can also use a capful of Draino on your sink drain to unclog the sink drain. 

Why Does My Bathroom Smell Like Eggs?

Having a clogged sink drain, dry drain, problematic p-trap, clogged inlet line, not having a vent, or incorrectly installed one are all the causes of your bathroom smelling like rotten eggs. 

Why Does My Bathroom Sink Smell Like Sewage?

If your bathroom sink drain is clogged or has not been used for months which leads to a dry drain can cause sinks to smell like sewage. Also, make sure the p-trap and the inlet of your sink are not clogged.