Bathroom Sink Smells Like Sewer: Causes and Solutions
A bathroom sink that smells like sewage is a common plumbing problem that can be caused by several factors. Some of the most common causes include:
- Dry P-trap: The P-trap is a U-shaped pipe under the sink that holds water to create a seal and prevent sewer gases from escaping.
- Clogged drain: Hair, soap scum, and other debris can accumulate in the drain and create a clog that traps water and allows sewer gases to escape.
- Damaged or loose pipes: Cracked or loose pipes can allow sewer gases to leak into the bathroom.
- Defective vent: A vent is a pipe that allows sewer gases to escape from the plumbing system. If the vent is clogged or damaged, sewer gases can back up into the bathroom.
If your bathroom sink smells like sewage, there are a few things you can do to try to fix the problem yourself.
- Pour a cup of baking soda down the drain: Baking soda is a natural deodorizer that can help to neutralize sewer gases.
- Flush the drain with hot water: Hot water can help to dissolve clogs and remove debris that may be causing the smell.
- Check the P-trap: Remove the P-trap and clean it out. If the P-trap is cracked or damaged, it will need to be replaced.
- Inspect the pipes: Look for any cracks or leaks in the pipes under the sink. If you find any damage, you will need to call a plumber to repair it.
- Check the vent: The vent is usually located on the roof of your house. Make sure that the vent is clear and not blocked by debris.
If you have tried all of the above and your bathroom sink still smells like sewage, you will need to call a plumber. A plumber can diagnose the problem and recommend the best course of action.
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