Why Does Bathroom Sink Smell Like Rotten Eggs

By | January 23, 2019

Why Does Bathroom Sink Smell Like Rotten Eggs?

It can be unpleasant when your bathroom sink starts to smell like rotten eggs. The smell is often caused by a buildup of bacteria in the drainpipe. This can happen when food particles, hair, and other debris get trapped in the pipe and start to decompose. As the bacteria break down the organic matter, they release hydrogen sulfide gas, which has a strong, rotten egg-like odor.

There are a few things you can do to get rid of the smell from your bathroom sink. First, try pouring a cup of baking soda down the drain followed by a cup of vinegar. Let the mixture sit for a few minutes, then flush it down with hot water. The baking soda and vinegar will help to neutralize the odor and kill the bacteria.

If the baking soda and vinegar solution doesn't work, you may need to use a commercial drain cleaner. Be sure to follow the directions on the product label carefully.

To prevent the smell from coming back, it's important to keep your drain clean. Regularly pour a cup of baking soda down the drain followed by a cup of vinegar. You can also use a drain strainer to catch hair and other debris before it gets into the pipe.

If you've tried all of these methods and the smell still persists, there may be a more serious problem with your plumbing. You may need to call a plumber to have the drain inspected and cleaned.

Other Possible Causes of a Rotten Egg Smell from Your Bathroom Sink

In some cases, the rotten egg smell from your bathroom sink may be caused by something other than bacteria in the drainpipe. Here are a few other possible causes:

  • A faulty water heater. If your water heater is not working properly, it can produce hydrogen sulfide gas, which can cause your bathroom sink to smell like rotten eggs.
  • A gas leak. If you smell rotten eggs in your bathroom and you also notice other symptoms of a gas leak, such as a hissing sound or a bubbling noise coming from your appliances, you should evacuate your home immediately and call the gas company.
  • A sewer gas leak. Sewer gas can also cause your bathroom sink to smell like rotten eggs. If you suspect a sewer gas leak, you should contact a plumber to have it inspected and repaired.

If you're not sure what's causing the rotten egg smell from your bathroom sink, it's best to call a plumber to have it checked out. They can determine the cause of the smell and recommend the best course of action.


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