Mystery plumbing in Basement???

Discussion in 'Framing and Foundation' started by pkovo, Mar 6, 2009.

  1. Mar 6, 2009 #1

    pkovo

    pkovo

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    My house is a amall ranch with a full basement built around 1950. I have a small plug in the floor. I can't figure out what it is.

    I was thinking perhaps at one point it was a sump pit that was sealed over. The cement has obviously been patched around the pipe about the diameter of a sump pit. Perhaps the basement was always dry so someone decided to seal it, and leave a plug in case they ever needed to drain the basement?? Maybe it connects to a perimeter drain sytem?? Someone suggested perhaps it was an old drywell which seemed odd to me but who knows. There are old water hookups in that area, and I believe at one point there was probably a washer and dryer there. Can't connect to a storm sewer as we don't have any. My sanitary sewer line runs out about 4' above the floor so it can't connect to that. It's about 4-5' from the end basement wall, and about 2-3' from the back wall (roughly).

    I started to chip away at the concrete at one point but decided that might not be a good idea. Of course I've tried to remove the plug without success as well.

    Pics below. Any Ideas??????

    [​IMG]

    [​IMG]
     
  2. Apr 19, 2009 #2

    mrivers

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    Hi pkovo,
    If I had to take a guess, I would say it used to be a shallow well, or a supply line from a well located somewhere outside the home.

    Is your home currently on a city/rural water system?
    If so do you know when it was connected to that system?
     
  3. Apr 19, 2009 #3

    Nestor_Kelebay

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    Pkovo:

    Where I live, if a drain pipe under your concrete basement floor changes direction, then the plumbing code requires that a clean out be installed at that change in direction so that each straight section of pipe can be cleared separately.

    I really don't know the reason for this rule.

    So, it's purely a guess, but it might be that there's a change in direction of a 1 1/2 inch drain pipe under the concrete at that spot.

    I'd be inclined to use an electric impact wrench to remove that plug and put in a new one with antiseize compound on the threads. That way you'll stand a better chance of getting it out if and when you need to.
     
    Last edited: Apr 19, 2009
  4. Apr 19, 2009 #4

    glennjanie

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    Hello PKovo:
    It could very well be a washer drain that used to drain into a sump where a pump would take it out.
    Glenn
     
  5. Apr 20, 2009 #5

    Quattro

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    Looks like a good place to trip!
     
  6. Apr 20, 2009 #6

    CraigFL

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    Personally, I wouldn't touch it. What if it's a sanitary sewer line and the pipe breaks off? Remember what they said about curiousity....
     
  7. Apr 20, 2009 #7

    inspectorD

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    Do you have a steam heat system? If you do this could also be the return condensate line back to the boiler.

    Other than that it is most likely a clean out plug to an abandonded sink line from a washtub in the basement to the outside drywell. We find them all the time.
     
  8. Mar 27, 2017 #8

    pkovo

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    I never figured thisnout, and managed to leave it alone. Guessing inspectorD's thought of it being a cleanout for an old wash sink is probably likely. Laundry area used to be around that spot.
     
    nealtw and inspectorD like this.
  9. Mar 27, 2017 #9

    slownsteady

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    Welcome back, pkovo. Why such a long delay? :)
     

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