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Thread: New faucet supply lines whistle

  1. #1
    DIY Junior Member
    Join Date
    Nov 2009
    Location
    tn
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    1

    Default New faucet supply lines whistle

    Just installed a new Delta kitchen faucet. Installed without a problem however when hot or cold water is on at a low flow the faucet supply lines under the sink whistle. The whistle varies with the flow and then dissapears at full on. The new Delta faucett supply lines are plastic and replaced the original rigid copper lines to the old faucet. the pitch of the whisle also changes when supply lines are moved with water running throught them. The house is 2 years old and the plumbing is PVC. Any idea of what could be causing the whistle? There were no noises prior to the new installation and the kitchen faucet is the only faucet making noise. Any help would be appreciated.

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,405

    Default

    Are the shutoff valves under the sink open all the way?
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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