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Frequently Asked Questions About Sewer Odors

Q: Sometimes I get a gas smell in my house. Where is it coming from?
  • If you have a basement with a floor drain somewhere, the water in the p-trap at the bottom of that drain can evaporate, leaving an open line for sewer gas to escape into the house.  Run some water into the drain to fill the trap back up.

  • If this drain doesn’t get used very often, you can put a little bit of oil (cooking) on top of the water after you have filled the trap, which will keep the water from evaporating or you can pour enough mineral oil in the drain to fill the trap, which will take a very long time to evaporate.

This application is for any other drain that may have the same problem.  If it’s just a sink drain that may not be used very often, just run some water down the drain periodically.

Also, the sewer smell could be caused by a vent in the wall that is not connected properly and may be leaking sewer gas into the walls.

Give us a call and we can provide the service you need that will eliminate the problem.

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