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thumping plumbing

Henry_5 Member Posts: 17
better than ever

Thanks for your reply.



  • Henry_5
    Henry_5 Member Posts: 17
    My kitchen faucet hot line

    is roughly 15' long run in pex from the manifold to the faucet. The house is essentially a homerun system with some t's cut in on lines run to the other end of the house.

    My problem is this: When I run straight hot to the kitchen sink the pex line gets hot and starts to vibrate and thump. It sounds like a Bell Huey rumbling by and the pressure drops by half. The dishwasher is connected to the same line and when it fills hot, I never have the problem, it is only the sink.

    I would like for someone to tell me why it is doing this when none of the other lines do and how I can make it go away. One other note, I have been in the house for three years and this has just started in the last month.

    Any tips would be appreciated.

    Henry Nichols
  • Weezbo
    Weezbo Member Posts: 6,232
    try this...

    open the kitchen cabinet,.... open and close the 1/4 turn angle stop a couple times... stand back remove the faucet aerator and screens turn on the cold then open the hot,... shut the hot side off and on,.. a couple times real quick...

    i am thinking it has something to with restriction in either the valve or the angle stop.if a small rock or something shoots out of the faucet.. you,... all good ,...back to normal...
  • Henry_5
    Henry_5 Member Posts: 17

    I will give it a try and let you know.

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