Snoot Chute
New Member
Starting in mid November of last year, there has been an on and off sewage smell coming from all the air vents in our house. I am certain it's coming from the vents and not a drain or anything like that. The smell fades when we turn heat and air conditioning off. The smell was tolerable up until late January of this year when it started getting stronger. And for the past 3 weeks, one day out of every weekend the smell gets so bad it's unbearable. Then during the rest of the week its off and on but not nearly as bad as the one day on the weekend. I tried turning the air conditioning on instead of heat for about 20 minutes several days ago to see if that would help but the smell kept coming. We had our plumber come check it out last week and I asked him if the A/C condensate drain was piped to outside and he said yes and showed me (I hope that was the right question). He checked under the house and said everything looked great and dry. He poured bleach down most drains and cleared hair out of shower drains, he also opened up the vents beneath our house. The smell came back the next day and continued as it had before he came. One other thing I want to note, is that on the day before the smell started for the first time, our plumber's son (also a plumber) came to reattach the pipe of the right side of our kitchen sink as it was leaking because it had not been properly installed by whoever did it originally. This doesn't seem like it would be related, but I know basically nothing about this sort of thing so I thought I'd mention it. Should I call our plumber back or should I call an HVAC person? If anyone has any insight as to how to fix this problem I would be immensely grateful. Thank you.