Why Does Bathroom Sink Smell Like Sewer?
There are several reasons why your bathroom sink might smell like sewer. Here are a few of the most common causes:
1. Dry P-Trap
The P-trap is the U-shaped pipe under your sink that holds water. This water creates a seal that prevents sewer gases from escaping into your home. If the P-trap dries out, sewer gases can leak out and cause your sink to smell bad.
2. Clogged Drain
A clogged drain can also cause your sink to smell like sewer. When the drain is clogged, water can't drain properly and it can start to back up into the sink. This can lead to a build-up of bacteria and other organic matter, which can cause your sink to smell bad.
3. Leaking Drainpipe
A leaking drainpipe can also cause your sink to smell like sewer. If the drainpipe is leaking, sewer gases can escape into your home and cause your sink to smell bad.
4. Damaged Vent Pipe
The vent pipe is a pipe that runs from your sink to the roof of your house. The vent pipe allows sewer gases to escape from your home. If the vent pipe is damaged, sewer gases can leak out and cause your sink to smell bad.
5. Bacterial Growth
Bacterial growth can also cause your sink to smell like sewer. Bacteria can grow in the drainpipe, P-trap, and other parts of your sink. This bacteria can produce gases that can cause your sink to smell bad.
6. Improperly Installed Sink
If your sink was not installed properly, it can also cause your sink to smell like sewer. If the sink is not properly sealed, sewer gases can leak out and cause your sink to smell bad.
How to Fix a Bathroom Sink That Smells Like Sewer
There are several things you can do to fix a bathroom sink that smells like sewer. Here are a few tips:
- Pour a cup of baking soda down the drain
- Follow the baking soda with a cup of vinegar
- Let the baking soda and vinegar sit for 15 minutes
- Flush the drain with hot water
If this does not work, you may need to call a plumber to fix the problem.
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