I need help identifying a mystery pipe...

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by AnMarie, Aug 1, 2020.

  1. AnMarie

    AnMarie New Member

    Joined:
    Nov 24, 2016
    Location:
    Chicago
    We bought a 1940’s cape cod and found this capped mystery pipe sticking out of the basement wall. It’s 34” up from the floor in the front of the house, 15’ to the right of our water main. Any ideas?

    3481C113-61F8-4934-8C07-F7905601911E.jpeg
     
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    It could have been the water supply coming in through the old galvanized, and now you have a new line? Do you have a water meter?
     
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  4. AnMarie

    AnMarie New Member

    Joined:
    Nov 24, 2016
    Location:
    Chicago
    No meter. We’re in Chicago and the meter installations have been paused. We still have the original water main pipes. One of the first things we had to do was abate the asbestos on the pipes.
     
  5. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Then I would be thinking gas pipe that used to go to the indoor meter.
     
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  6. AnMarie

    AnMarie New Member

    Joined:
    Nov 24, 2016
    Location:
    Chicago
    ...I believe it’s 1.75” diameter; maybe 2”.
     
  7. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Nominal Size (IPS) Diameter External
    1" 1.315
    1-1/4" 1.660
    1-1/2" 1.900

    1-1/4" is popular inside, but the pipe from the street could have been 1-1/2".
     
  8. wwhitney

    wwhitney Well-Known Member

    Joined:
    Mar 17, 2019
    Location:
    Berkeley, CA
    Fuel oil? An old fill port in the yard, and piping going to a now removed oil tank in the basement?

    Cheers, Wayne
     
  9. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    Definitely not a gas pipe, very possible it was a fuel oil pipe, as stated above, but it is pointing up?
     
  10. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Because why?

    I am sticking with gas pipe as most probable. Gas meters used to be in the basement.
     
    Last edited: Aug 3, 2020
  11. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    It's too big and it doesn't look like a iron pipe cap. Why would it come in up an angle. If anything, it could have been a coal fired building and would have converted over to gas and it would still be used.
     
  12. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Gas wouldn't care if it goes uphill, although I am not sure that pipe is actually going uphill. It could just look that way in the photo.

    Back in the old days, the gas mains were low pressure and big pipes were needed to the house. Gas meters in the basement were the norm. Then the systems were converted.

    I am not rejecting other possibilities.
     
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