New smell from outside vents

Discussion in 'Drain and Sewer Cleaning' started by 75meters, Jun 8, 2018.

Help Support Plumbing Forums by donating:

  1. Jun 8, 2018 #1

    75meters

    75meters

    75meters

    New Member

    Joined:
    Jun 8, 2018
    Messages:
    4
    Likes Received:
    1
    Hello All —
    We've lived in this house for 3 years now with no issues. About a week or two ago, we've noticed a sewage smell coming from the back clean-out vents in the back yard.

    You can tell that its gets worse on windy days as it wafts around the backyard. The main line dosent seem to be clogged. All of the plumbing inside the house is also fine. No backups, slow drainage, gurgling, etc.

    I have 2 clean-outs in the back that lead down into the city sewage main line. Each clean out has a mushroom cap on the top. Can I use threaded caps? Or do these need to vent?

    Any ideas on how to correct?

    Thanks
    Jason
     
  2. Jun 8, 2018 #2

    havasu

    havasu

    havasu

    Administrator Staff Member Admin

    Joined:
    Jan 6, 2010
    Messages:
    9,137
    Likes Received:
    1,244
    Location:
    Southern California,
    Are you sure you are not on a septic system?
     
  3. Jun 8, 2018 #3

    CT18

    CT18

    CT18

    Junior Member

    Joined:
    Apr 30, 2014
    Messages:
    337
    Likes Received:
    81
    Location:
    Bloomfield Hills, Michigan
    City system should have threaded clean out plug in it.
     
  4. Jun 10, 2018 #4

    75meters

    75meters

    75meters

    New Member

    Joined:
    Jun 8, 2018
    Messages:
    4
    Likes Received:
    1
    Hey. No septic. Im thinking of putting a threaded cap on them... If I do that, would the smell come into the house? I guess its worth a try... Thanks
     
  5. Jun 10, 2018 #5

    RenewDave

    RenewDave

    RenewDave

    Well-Known Member

    Joined:
    Feb 18, 2018
    Messages:
    91
    Likes Received:
    14
    Location:
    ,
    Just had this same issue come up here. Called the city and they rerouted some pump stations for a major construction project. Give the city a call and see if they’ll check it out. Our guys knew it was an issue. Solving it....different story. They put these huge, what looked like urinal cakes in the man hole to try to a leash minimize the smell. Capping your lines will just push the problem to the next person, if it’s the same issue.
     
  6. Jun 10, 2018 #6

    Mr_David

    Mr_David

    Mr_David

    Easily Amused Professional

    Joined:
    Jan 12, 2010
    Messages:
    4,136
    Likes Received:
    1,044
    Location:
    Santee,Ca,
    If you cap the cleanouts then the gases may vent from your roof vents.
     
  7. Jun 10, 2018 #7

    75meters

    75meters

    75meters

    New Member

    Joined:
    Jun 8, 2018
    Messages:
    4
    Likes Received:
    1
    Thanks — strange thing is that they JUST finished construction on a newer, larger pumping station down the street... Im guessing its not a coincidence. I called the city and the guy came out and said "...I didnt smell anything..." and told me to monitor it and call if its back... But its always there. — What did they do to correct it?

    Im going to call the city again tomorrow.
     
  8. Jun 11, 2018 #8

    75meters

    75meters

    75meters

    New Member

    Joined:
    Jun 8, 2018
    Messages:
    4
    Likes Received:
    1
    Thanks. Ill keep you posted after I call... This is a pain.
     
  9. Jun 11, 2018 #9

    RenewDave

    RenewDave

    RenewDave

    Well-Known Member

    Joined:
    Feb 18, 2018
    Messages:
    91
    Likes Received:
    14
    Location:
    ,
    It didn’t go away, they just tried to make it smell better. Carbon mushroom filters are what they suggest, at your cost. But ultimately, you’ll just be pushing the smells to the next guy. Isolate best you can and see how you can manipulate where the gases end up.
     
  10. Jul 14, 2018 #10

    canadiantechnician1988

    canadiantechnician1988

    canadiantechnician1988

    New Member

    Joined:
    Jul 9, 2018
    Messages:
    4
    Likes Received:
    0
    Location:
    Edmonton Alberta
    Perhaps installing an inline trap somewhere Downstream or Upstream will help stop the smell from escaping, unless they're already is an inline trap and you just need to renew the water as it's been so long that the gas has penetrated through the water as gas is lighter than air
     
  11. Jul 16, 2018 #11

    wood4d

    wood4d

    wood4d

    Active Member

    Joined:
    Apr 1, 2014
    Messages:
    35
    Likes Received:
    6
    Location:
    ,
    why cant the sewer vent through your roof vents?
     

Share This Page