What size pipe is this?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by kubstix, Oct 12, 2018.

  1. kubstix

    kubstix Member

    Joined:
    Feb 28, 2018
    Location:
    Pennsylvania
    So to give a quick background. I am having my garage concrete flour redone and have a sewage basin in the right hand corner for my downstairs bathroom. I am replacing this cast iron basin with a plastic so I am doing some prepping. I am also remodeling my basement at the same time. I was heart broken when I saw what appears to be a 2" PVC pipe for my downstairs toilet. It's about a 6 foot run from toilet to basin. I am ready to take out he jackhammer, but I don't want to do unnecessary work. The toilet flange is an outside toilet flange. I think this pipe is 2", but I want to be sure. House is from the late 70's. I can clean up the flange a bit, but it appears to say Genova "Thin Wall". Thank You.
     

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  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    That is a closet flange -- thing you normally mount a toilet to.

    It might be inserted into a 3 inch pipe or a 3 inch elbow. Can't tell.

    https://patents.google.com/patent/US3846851 is the patent number on the plastic.
     
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  4. kubstix

    kubstix Member

    Joined:
    Feb 28, 2018
    Location:
    Pennsylvania
    It is the type of flange that goes over the outside of the pipe. You can vaguely see the outline of the top of the pipe going around. I just don't really know what to think about this. Back in the 70's did they make toilet flanges for 2" PVC?
     
  5. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    It is not that. 2 inch PVC is just a tad bigger ID than 2 inches. The throat on that thing that I think is part of the closet flange is a little under 2.5 inches.

    As I look into your picture, it seems that the path may widen out a few inches down, no? If you shine a flashlight down there, what do you see? Maybe insert a small flashlight deep inside and take a non-flash picture.
     
  6. kubstix

    kubstix Member

    Joined:
    Feb 28, 2018
    Location:
    Pennsylvania
    I will try to get a better idea when I get home from work. I am concerned because theoretically the measurement of the pipe starts about 5/16 on the tape measure and ends about 2 3/4. So this pipe measures 2 7/16 give or take a tiny bit off. I cannot believe this, but it appears these builders used 2 1/2 PVC for toilet drain
     
    Last edited: Oct 12, 2018
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