Unused Bathroom Smells Like Sewer

If your unused bathroom smells like sewer, you'll want to address the issue as soon as possible. The smell can become unbearable over time and lead to more serious problems down the line. This article will discuss the common causes of an unused bathroom smelling like a sewer and provide solutions that can help you get rid of the smell.
The most common cause of an unused bathroom smelling like a sewer is a lack of water in the P-trap. The P-trap is a U-shaped pipe under the sink or toilet that holds water to create a seal. This seal prevents sewer gases from escaping into the bathroom.
If the P-trap dries out, sewer gases can escape and cause the bathroom to smell. This can happen if the bathroom is not used for a prolonged period of time, or if there is a leak in the P-trap. Other causes of an unused bathroom smelling like a sewer include:
A clogged vent pipe. The vent pipe is connected to the sewer line and allows sewer gases to escape from the system. If the vent pipe is clogged, sewer gases can back up into the bathroom.
A damaged sewer line. A cracked or broken sewer line can allow sewer gases to escape into the bathroom.
Tree roots growing into the sewer line. Tree roots can break the sewer line and allow sewer gases to escape into the bathroom.
If you suspect that the smell in your unused bathroom is coming from a sewer problem, there are a few things you can do to try and fix it yourself.
If you have a sink or toilet in the bathroom, you can try pouring a gallon of water down the drain. This will help to fill the P-trap and create a seal. You can also try using a drain cleaner to clear any clogs that may be in the P-trap.
If you have a clogged vent pipe, you can try using a wet/dry vacuum to suck the clog out. You can also try using a snake to clear the clog.
If you have a damaged sewer line, you will need to contact a plumber to have it repaired.
If you have tree roots growing into the sewer line, you will need to contact a plumber or a tree service to have the roots removed.
If you have tried all of the above solutions and the smell in your unused bathroom is still not gone, you may need to call a professional plumber to diagnose and fix the problem.
Here are some tips to help prevent your unused bathroom from smelling like a sewer:
Run water through the sink and toilet regularly, even if you don't use the bathroom. This will help to keep the P-trap full and create a seal.
If you have a vent pipe, make sure that it is not blocked or obstructed. Trim any trees or shrubs that may be growing around the vent pipe.
If you have a septic tank, have it pumped and inspected regularly. A failing septic tank can cause sewer gases to back up into your home.
By following these tips, you can help to prevent your unused bathroom from smelling like a sewer.
If you have any questions or concerns about the smell in your unused bathroom, please contact a qualified plumber for assistance.