Hot water Pipe Mount Question

Discussion in 'General Plumbing Help' started by jhartmann05, May 30, 2019.

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  1. May 30, 2019 #1

    jhartmann05

    jhartmann05

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    My hot water pipe in my ceiling started to leak. The plumber came and said it is because it shouldn't be mounted to a piece of wood due to the hot water pump moving it around. The mount is probably in incorrect term, but it is holding the pipe up so it doesn't sag. His claim was that over time it would create the leak. Seemed legit, but now the pipe is sagging and then like eight feet away it is mounted to another piece of wood. This doesn't seem right and I feel like this will cause more movement and more damage down the road quickly. If he is right, then shouldn't the other mount be removed? if that gets removed the weight will droop way down and seemingly could cause damage. What should I do?
     
  2. May 30, 2019 #2

    jeffmattero76

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  3. May 30, 2019 #3

    Diehard

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    Piping should be supported to prevent sagging and allow movement associated with expansion and contraction of the piping.
    It should not be so tightly supported that expansion and contraction would cause forces to be exerted on the piping system.
     
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  4. May 30, 2019 #4

    frodo

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    the leak, It depends on where the leak is located

    if you are running a pump that is hard piped with out a flexible connection for vibration isolation then the threaded joints will leak

    if you post a picture of the problem that would help
     
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  5. May 31, 2019 #5

    jhartmann05

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    Here are some pictures. The middle is the hot water pipe. It is now sagging as you can see and it seems like it is putting strain on pipe on the other places where the pipe is being held up
     

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  6. May 31, 2019 #6

    jhartmann05

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    Above is the pic. Hopefully it shows the sagging now of the pipe. It is laying on a bundle of cords which probably also isn't good. But it sounds like it needs to be in or on something to rest some of its weight on, but still have flexibility to "wiggle" a little bit.
     
  7. May 31, 2019 #7

    frodo

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    I do not see anything wrong with the hardware you are using to strap the pipe
    It needs to be strapped at every connection
    and copper pipe size 1 1/4'' and under is a hanger every 6'
     
    Last edited: May 31, 2019
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  8. May 31, 2019 #8

    Diehard

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    As mentioned, all you need to do is support piping with pipe strapping. That would take car of the concern for expansion and contraction, as well.
    However, I thought most codes required 6 foot spacing on that small stuff.

    EDIT: You're welcome!:D
     
    Last edited: May 31, 2019
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  9. Jun 2, 2019 #9

    jhartmann05

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    Thanks for the help! Last question: Does this look okay? I had to use a bigger fitting since the repaired pipe is slightly larger than before. It now has a lot of space and I wanted to see if that is okay. Seems fine at first glance but wanted to run it by you guys first. Thanks again!
     

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  10. Jun 3, 2019 #10

    Diehard

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    Well that oversized hanger will certainly allow longitudinal movement. But not knowing how rigid the next upstream and downstream supports are, I cannot say that you have provided for expansion and contraction of that hot water pipe line.
    What you have provided is vertical support and a guide that will allow longitudinal movement at THAT point. Not relieving any stresses from the joints necessarily if the next hangers are rigidly fixed.

    EDIT: If there are other hangers that are rigidly affixed. Not allowing the pipe to stretch, for example, you should loosen them up a bit so they are not.
     

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