My Bathroom Sink Smells Like Sewer

A bathroom sink that smells like sewer is a common problem that can be caused by a variety of factors. The most common cause is a clogged drain, but other causes can include a faulty P-trap, a leaking pipe, or a problem with the sewer line. If you are experiencing this problem, there are a few things you can do to try and fix it yourself before calling a plumber.

The first step is to try and clear the drain. You can do this by using a plunger or a drain snake. If that doesn't work, you can 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 the drain with hot water.

If the drain is not clogged, the next step is to check the P-trap. The P-trap is the U-shaped pipe that is located under the sink. It is designed to trap water and prevent sewer gases from escaping into the bathroom. If the P-trap is loose or damaged, it can allow sewer gases to escape and cause the sink to smell like sewer.

To check the P-trap, first remove the drain plug. Then, use a flashlight to look inside the P-trap. If you see any cracks or leaks, you will need to replace the P-trap.

If the P-trap is not the problem, the next step is to check the pipes. Look for any leaks or cracks in the pipes. If you find any, you will need to call a plumber to repair them.

Finally, if all else fails, you may need to call a plumber to inspect the sewer line. The sewer line is the pipe that carries wastewater away from your home. If the sewer line is clogged or damaged, it can cause sewer gases to back up into your home and cause the sink to smell like sewer.