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    Danp3kids's Avatar
    Danp3kids Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 25, 2014, 05:22 PM
    PRV and pipesmakes noise
    I recently adjusted my water pressure to 50 psi from 40. Once I did this the pipes started singing when water is turned on. I reduced the pressure back to 40 it still happens.

    I tried draining the pipes thinking air might be in the lines. Still makes the noise.

    I'm thinking I need to replace the PRV valve or add an expansion tank near the water tank, possibly both? The psi on the water tank outlet is 40 psi


    Thanks
    Dan
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Jun 26, 2014, 05:39 AM
    When the pipes make a noise place your hand on the PRV. Can you feel it vibrate? Let me know. Back to you, Tom
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