What causes a kitchen sink drain to smell?


Caleb Lambert   |   Member since 2012  |  10+ Answers Submitted  |  ✔ Verified

One of the most common reasons for a kitchen sink to have a rotten egg or moldy smell is from grease or fat getting stuck in your drains. The foaming of the baking soda/vinegar eats away at the junk in the drain and the boiling water helps wash it all away and sanitizes the drain .

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Rhea Bailey   |   Member since 2010  |  10+ Answers Submitted  |  ✔ Verified

Thereof, why does my kitchen sink smell like sewer?

Problem with the Trap If your kitchen sink smells more like sewer than rotten food, there might be a problem with its trap. The trap's job is to prevent sewer gas from drifting from the pipes back up into your house. Usually, a sewer smell means that the water in the trap that blocks sewer gas has evaporated.

Secondly, how do you get rid of the smell in the sink? Get rid of a smelly sink drain with baking soda.

  1. Pour cup baking soda into the drain opening.
  2. Pour cup white vinegar into the drain.
  3. Pour 1 gallon boiling water down the drain to flush out leftover residue.
  4. Repeat every one to two weeks to prevent odor from returning.

Allison Lynch   |   Member since 2016  |  10+ Answers Submitted  |  ✔ Verified

Thereof, how do I get rid of the smell in my kitchen sink drain?

Dump a good handful of baking soda into the drain, let sit (don't run any water) for 15 minutes, then pour 1/4 to 1/2 cup white vinegar down. Watch the bubbles, hear the pops and fizz, and let it sit for another 15 minutes. Then, boiling water and voila!.


Carissa Burnley   |   Member since 2014  |  10+ Answers Submitted  |  ✔ Verified

Why does sink drain smell?

Sulfur smells in your sink could be coming from the water or the drain, and either way, they aren't pleasant. The smell comes from hydrogen sulfide gas, which is produced by bacteria in the ground, in sewage and in contaminated water and pipes. It's often known simply as sewer gas.


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Related Answered Questions

Below is a list of answers to questions that have a similarity, or relationship to, the answers on "What causes a kitchen sink drain to smell?". This list is displayed so that you can easily and quickly access the available answers, without having to search first.

Carl Andersson   |   Member since 2007  |  ✔ Verified

Is it safe to put baking soda and vinegar down the drain?

Drain Cleaner. Use the vinegar and baking soda combination to help clear a sluggish drain. If there is no standing water in the way, pour a half-cup of baking soda down the drain, then add a half a cup of white vinegar. Place a drain cover over the drain and wait for fifteen to twenty minutes.


Hanna Vincent   |   Member since 2018  |  ✔ Verified

How do I fix a smelly dishwasher?

Remove Dishwasher Odor with Vinegar and Baking SodaEmpty the appliance of all dishes. Place one cup of white vinegar in a bowl on the top rack of the dishwasher. Run the dishwasher on the hottest cycle available. Remove the bowl from the dishwasher once the cycle is complete.


Maxwell Ebden   |   Member since 2005  |  ✔ Verified

Is it OK to pour bleach down the sink?

Bleach is a powerful, toxic substance that should be used carefully and properly, and pouring it down a drain is not a proper use. Bleach can react with other substances in your pipes, potentially release fumes, and further plug up the system. Pouring bleach down them will do much more harm than good.


Gladys Selby   |   Member since 2019  |  ✔ Verified

Why does my sink smell when I run the dishwasher?

If you get a sewer smell when you are using the dishwasher on a kitchen sink, it often means that the dishwasher filters needs to be cleaned or there is a blockage in the vent or the drain of the pipes inside the wall. Bad odors within dishwashers is a common occurrence and can develop overtime through regular use.


Bob Dixon   |   Member since 2017  |  ✔ Verified

Can I pour bleach down the bathtub drain?

One way to do this is to close the drain and pour 1/2 cup of bleach with 1 gallon of water in the tub or sink. Open the drain to let the diluted bleach go down into the pipes. Avoid using this method on copper sinks or other sinks with material that may be damaged by bleach.


Gil Tobin   |   Member since 2018  |  ✔ Verified

Why does my kitchen sink drain smell musty?

The musty smell might come from the top of your drain. If your sink drain is functioning properly, a pool of water in the P-trap blocks sewer odors from wafting into the kitchen, so if you're detecting musty smells under your kitchen sink or in the drain, they are probably coming from the top of the drain.


Nicholas Dunbar   |   Member since 2008  |  ✔ Verified

How do you freshen a drain?

Sprinkle a mixture of 1/2 cup baking soda and 1/4 cup table salt into the drain. Microwave one cup of distilled white vinegar or heat it in a pan on the stove, and pour it down the drain. Allow the baking soda and vinegar mixture, which will foam, to stand in the drain for 15 minutes.


Aiden Turner   |   Member since 2005  |  ✔ Verified

Why does my bathroom sink drain smell like rotten eggs?

If your drain smells like rotten eggs, it's hydrogen sulfide, one of the many compounds that make up the gas found in sewage. Pour a glass of water from the sink with the stinky drain. Take it outside and smell it.


Ally Snow   |   Member since 2020  |  ✔ Verified

How do I clear a clogged sink?

How to Unclog Your Drain With Baking Soda and VinegarPour a pot of boiling hot water down your drain. Dump in about 1/2 c. Then, pour a mixture of 1 c. Cover with a drain plug (to keep the reaction down below the drain surface) if you have one and let it sit for 5-10 minutes.


Harmony Power   |   Member since 2011  |  ✔ Verified

How do you get rid of sewer gas smell in kitchen sink?

Baking Soda and Vinegar Pour one cup of baking soda into the drain, followed by the same amount of vinegar and let sit for 10 minutes. While you are waiting, boil a pot (about six cups) of water. Pour the boiling water down the drain to help move along any residual particles.


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