Bathroom Sink Smells Like Rotten Eggs

By | April 7, 2024

Bathroom Sink Smells Like Rotten Eggs

If your bathroom sink smells like rotten eggs, it's likely due to a buildup of bacteria in the drain. This bacteria can produce hydrogen sulfide gas, which has a strong, unpleasant odor. There are a few things you can do to get rid of the smell, including:

  • Pouring a cup of baking soda down the drain, followed by a cup of vinegar. Let it sit for 30 minutes, then flush with hot water.
  • Using a commercial drain cleaner. Be sure to follow the directions on the product label carefully.
  • Snaking the drain. This will remove any clogs that may be trapping bacteria and causing the smell.

If you've tried all of these methods and the smell still persists, there may be a more serious problem, such as a leak in the drainpipe. In this case, you'll need to call a plumber to fix the leak.

Here are some tips to prevent your bathroom sink from smelling like rotten eggs in the future:

  • Clean your sink regularly with a disinfectant cleaner.
  • Run hot water down the drain for a few minutes each day to flush out any bacteria.
  • Avoid pouring grease or other food waste down the drain.
  • Dispose of hair and other debris in the trash, not the sink.

By following these tips, you can keep your bathroom sink smelling fresh and clean.

Additional Causes of Bathroom Sink Smells

In some cases, a bathroom sink smell like rotten eggs may be due to other causes, such as:

  • A clogged vent pipe. The vent pipe allows sewer gases to escape from the house. If the vent pipe is clogged, these gases can back up into the sink and cause a smell.
  • A faulty wax ring. The wax ring is a seal that prevents sewer gases from leaking around the base of the toilet. If the wax ring is faulty, sewer gases can escape and cause a smell in the bathroom.
  • A dry P-trap. The P-trap is a U-shaped pipe that prevents sewer gases from escaping from the drain. If the P-trap is dry, sewer gases can escape and cause a smell.

If you suspect that one of these problems is causing the smell in your bathroom sink, you'll need to call a plumber to fix it.


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