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how to fix noisy water flow in pipes in stack and wall??

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  1. #1
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    Default how to fix noisy water flow in pipes in stack and wall??

    unit block 3 stories, got people middle floor complaining about water noise in the pipes going up the stack and into the shower. its not a banging noise but water flow noise and wakes people up in the middle of the night when someone above is having a shower really late.
    anyway to fix this??

  2. #2
    Seasoned DIY droog's Avatar
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    Acoustic insulation ?

    Is it something new or has it always been there ?

  3. #3
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    block walls, concrete floors, not easy to put in insulation.
    has it always been there? not sure. other units in the building dont suffer from this noise like this stack does.

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    Is it only one shower that creates the problem or both showers on 2nd 3rd floors?
    If it’s just one check the washers / taps on that shower.

    You specifically mention shower but I assume that the water supply would also feed other taps in the apartment so what happens if you use other taps ?

  5. #5
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    yeah other taps in the same bathroom make the noise when turned on as well, dont know about the unit under it

  6. #6
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    Check for any shutoff valve or flow restrictors, anything that could potentially restrict free flow.

  7. #7
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    none, straight up the stack thats 3/4" into the unit shut off that i have tried in various positions and still make same noise

  8. #8
    Seasoned DIY droog's Avatar
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    So is it common supply to all floors with shutoffs at each level.

  9. #9
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    Quote Originally Posted by droog View Post
    So is it common supply to all floors with shutoffs at each level.
    yes
    Attached Thumbnails Attached Thumbnails stack.jpg  

  10. #10
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    But only an issue if level 3 is running water.
    Sorry I am out of ideas.


    Edit: Maybe swap the tenants between the units ;-)

  11. #11
    Community Moderator phild01's Avatar
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    Is the 3/4 hard saddled. Isolating the fix off may help.

  12. #12
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    Quote Originally Posted by phild01 View Post
    Is the 3/4 hard saddled. Isolating the fix off may help.
    no idea its in a gyprocked stack.

  13. #13
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    Quote Originally Posted by wozzzzza View Post
    no idea its in a gyprocked stack.
    If you can't access the source of the noise I don't know how you will isolate it.

  14. #14
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    Quote Originally Posted by wozzzzza View Post
    no idea its in a gyprocked stack.
    If you cannot see it then you cannot be sure that there are no flow restrictors or other devices producing the noise.
    Use a stethoscope to pinpoint source of the noise, then borescope to investigate.

  15. #15
    Community Moderator phild01's Avatar
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    It is very common for water pipes to be a disturbance as water rushes through them. Simply a matter of isolating the pipes to whatever they are held against.

    its not a banging noise but water flow noise

  16. #16
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    Quote Originally Posted by phild01 View Post
    It is very common for water pipes to be a disturbance as water rushes through them. Simply a matter of isolating the pipes to whatever they are held against.
    they are in a concrete floor and bock wall, thats the issue.

  17. #17
    Je pense, donc METRIX's Avatar
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    My mate used to live in an old set of apartments that suffered from the same problems, there was specific rules in the rental agreement about what time you were allowed to flush the toilet, and use the shower.
    From memory after 10:00 you were not allowed to do either
    Mieux vaut prévenir que guérir

  18. #18
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    Is the noise in the water pipe or drains. Last time I stayed in an Australian hotel the floor drain in bathroom was noisy, probably needed trap refilled.

  19. #19
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    no water pipes, not drain.

  20. #20
    Community Moderator phild01's Avatar
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    Quote Originally Posted by wozzzzza View Post
    no water pipes, not drain.
    so what do you suspect the noise is from.
    got people middle floor complaining about water noise in the pipes going up the stack and into the shower

  21. #21
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    got plumber coming next week to look.

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