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I am hoping someone out there has some good advice for me. We recently bought a new house and had a bathroom put into the basement. The liftkit/sumppump is in a small closet in my son's bedroom. On occasion we get a horrible sewage oder in his room and throughout the rest of the basement. We had the plumber back who checked the seal and said all was fine..... Why are we getting such a horrible oder of sewage? Is there anything we can do to rectify this situation? Your insight would be appreciated

I assume the sump pit is vented to the outdoors. If you use the toilet, especially for solids, make sure that you run enough water through the system to make the pump run and empty the sump. Otherwise you'll have sewage sitting in the sump until you get enough water in the sump to activate the pump.

You might try putting some disinfectant (liquid Lysol) down the drain to keep the odors at bay. Periodically putting a cup of bleach in the sump while it is full of water would help keep the inside of the sump clean and cut down on the odors. You could fill it up with hot water and pull the plug to the sump and let it sit for an hour or so. Then plug it back in and let it pump the water out.

You're not getting sewage smell from the waste lines you're getting it from the sump.

This message has been edited. Last edited by: Sparky,