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Thread: What is this and how do I stop it?

  1. #1
    DIY Senior Member nelsonba's Avatar
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    Default What is this and how do I stop it?

    This pipe looks like it was cut off at one time and plugged with something. I'm not sure where it goes or whether it's a radiator pipe or an old water pipe. It doesn't appear to go anywhere on the first floor of my house. (This is in the basement). The only thing remotely close to it is a radiator on the 2nd floor (assuming it goes all the way up) but that radiator is working so it wouldn't make any sense that it would be for that (at least to me).

    Anyway, it's leaking and I'm looking for the best way to stop it. Is there some type of cap I can get for it? I'm assuming it's an iron pipe, but there are no threads to attach it to.
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  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    Are you sure that isn't a plastic coupling and a white plastic cap glued inside?
    It could be for a future basement plumbing vent if that is the case.

  3. #3
    DIY Senior Member nelsonba's Avatar
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    Default Don't know

    Could be a vent I guess. I pushed on the plastic piece that's shoved in and it's loose. Doesn't appear to be under pressure. The boiler has been running for a while now, so it's pressurized, and obviously the water is on. I'm thinking just a rubber cap with steel band would do. Let me know if anyone thinks otherwise.

  4. #4
    Master Plumber Redwood's Avatar
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    Default

    That should be fine.

  5. #5
    DIY Senior Member nelsonba's Avatar
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    I should clarify though... There is nothing new about this. It's an iron pipe with a plastic piece shoved inside.

  6. #6
    Moderator & Master Plumber hj's Avatar
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    Default cap

    IF you cap it, and there is water entering the pipe causing the leak, the pipe will fill up and then the water will have to go somewhere, possibly causing another leak elsewhere. Your REAL problem is to find where the water is coming from, not to eliminate the symptom of water leaking out of the pipe.

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