HI all,
Been in the house for 20 years. It was built new. While I do think there is a vent stack for the master bath, the builder installed AAVs at every bathroom sink in the house. The master bath has 2 different vanities, each with a sink, a toilet, and a shower. It's been fine for years up until a few months ago when both sinks in the master bath started giving off a sewer smell ONLY when you run the water. So if you run water in the sink, you smell a little of the sewer gas. I thought the AAVs needed to be replaced, so I did, and it solved the problem for about 2 days and then the smell came back. I am not sure what the issue is. You don't smell anything unless you run the water, so I imagine it has to do with gas behind the P-trap coming out when the water runs through. Unless I installed the new valves the wrong way (which is possible I guess but unlikely as I bought the same ones from Oatey, unscrewed the old ones and screwed the new ones on), I am not sure what else I can look at to fix it. I did take both P-traps apart to clean them but it hasn't really done anything.
Thanks,
Greg
Been in the house for 20 years. It was built new. While I do think there is a vent stack for the master bath, the builder installed AAVs at every bathroom sink in the house. The master bath has 2 different vanities, each with a sink, a toilet, and a shower. It's been fine for years up until a few months ago when both sinks in the master bath started giving off a sewer smell ONLY when you run the water. So if you run water in the sink, you smell a little of the sewer gas. I thought the AAVs needed to be replaced, so I did, and it solved the problem for about 2 days and then the smell came back. I am not sure what the issue is. You don't smell anything unless you run the water, so I imagine it has to do with gas behind the P-trap coming out when the water runs through. Unless I installed the new valves the wrong way (which is possible I guess but unlikely as I bought the same ones from Oatey, unscrewed the old ones and screwed the new ones on), I am not sure what else I can look at to fix it. I did take both P-traps apart to clean them but it hasn't really done anything.
Thanks,
Greg