It's baaaack - when I moved into my house there was a smell that came and went in the upstairs bathrooms mostly --
and outside but rarely at the same time. It was much worse when the weather changed. After about a year and a constant march of plumbers many of which wanted to practically tear my house down for tons of dough. I decided it must be a vent problem. I ordered a charcoal vent filter and it worked fine from early spring until now. I guess I need a new charcoal. My question is - since the smell is inside do you think there is a crack in the vent pipe somewhere inside the wall? I checked the attic exposed portion and it looks intact. It is copper/solid but old the house built in the mid-60's
I doubt you have a crack in the vent pipe. If you did the smell would not come and go. ...»
Also location of vent pipe has a lot to do with smells. If its to close to roof edge, or near windows the colder weather can cause all sorts of different movements in the air drawing the odors down.
Do you hear any sounds in the sink when you flush the toilet or any air bubbles the reson I ask is if you have something stuck in the vent?
Do you have a clean out in basement? How old is the house and do you have septic tank? If so when was that emptied?
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