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How to get rid of sewer gas smell in a basement

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How to get rid of sewer gas smell in a basement
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Tony clearing a sewer roof vent.

Sewer gas smell in a basement can be a frustrating and potentially dangerous problem to have. Sewer gas is a mixture of various gases that are produced by the breakdown of organic matter in the sewer system. These gases can include methane, carbon dioxide, hydrogen sulfide, and ammonia. The smell of sewer gas can be unpleasant and can cause health problems if not addressed promptly. It’s important to identify the source of the smell and take appropriate action to eliminate it. Here are some steps you can take to get rid of the sewer gas smell in your basement.

Steps to get rid of sewer gas smell in a basement:

Locate the source of the smell: The first step in getting rid of the smell is to locate the source of the smell. It may be coming from a specific drain or pipe. Try to identify which specific area of the basement the smell is strongest and focus your efforts there.

Check the P-trap: A P-trap is a curved section of pipe that is designed to hold a small amount of water to create a barrier between the sewer gases and the living space. Make sure that all the P-traps in the basement have water in them and that they are not dry. You can fill the P-trap with water or flush the toilet or run the water in the sink to fill the trap with water.

Check the sewer line: A blocked or cracked sewer line can be a common cause of sewer gas smell in a basement. This can be caused by tree roots growing into the line, a buildup of debris, or a broken pipe. If you suspect that this is the cause of the smell, it’s important to contact a plumber as soon as possible to have the line inspected and repaired.

Check for blockages: If the sewer gas smell is coming from a specific drain, it may be caused by a blockage in the drain. This can be caused by a buildup of hair, soap scum, or other debris. To fix this, you can try using a plunger or a drain snake to remove the blockage.

Tony clearing a sewer roof vent. Roof vent obstructions are a common cause of sewer odors. To get rid of sewer gas smell in a basement it might be necessary to clear the roof vent.
Tony clearing a sewer roof vent. Roof vent obstructions are a common cause of sewer odors. To get rid of sewer gas smell in a basement it might be necessary to clear the roof vent.

Check the vent pipe: Another potential cause of sewer gas smell in a basement is a vent pipe that is not functioning properly. The vent pipe allows air to flow in and out of the drain system, which helps to prevent sewer gases from building up. Make sure that the vent pipe on the roof is not blocked, and that it’s functioning properly.

Clean and maintain appliances: Make sure to properly maintain and clean all appliances that use water in the basement like washing machine, dishwasher, and sink. These appliances may have a p-trap or drain that may not be working properly, and cleaning them may solve the problem.

Insulate pipes and ducts: Properly insulating pipes and ducts that run through unheated areas like basements and attics can prevent condensation and therefore prevent sewer gas smell.

Properly ventilate the area: If possible, make sure that the basement area is properly ventilated by installing a window or an exhaust fan. This will help to improve the air quality in the basement and prevent the buildup of sewer gas.

Contact a plumber: If you are unable to locate the source of the smell or if the problem persists, it’s best to contact a plumber who can properly diagnose and fix the issue. A plumber will have the tools and expertise to find and repair the problem, and may be able to identify issues you might have missed.

It’s important to keep in mind that sewer gas smell can be caused by multiple factors, and it may take a combination of steps to fully eliminate the smell. However, by following these steps, you can help to eliminate the smell and improve the air quality in your basement. Additionally, it’s important to keep an eye out for any other signs of a sewer or drain problem, such as slow drains, gurgling sounds, or standing water, as these can indicate problems related to, or which might cause sewer gas smells.

If you’re looking for help to get rid of sewer gas smell in a basement, please feel free to call us. We’re top rated local plumbers. This is what we do. We’re available anytime you need at 626.448.6455

John, Larry, Mike, owners of Western Rooter & Plumbing

Need expert plumbing help?

If you’re having plumbing issues or emergencies, contact Western Rooter & Plumbing online or call our dispatch center at (626) 448-6455. We are the Los Angeles County and San Gabriel Valley’s number one plumbers – don’t wait, call now!

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