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    gkershner2's Avatar
    gkershner2 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 2, 2014, 07:30 AM
    Water pressure Surging and Dropping
    I replaced my water heater, expansion tank and pressure reducing valve, but my water pressure surges and goes from 80psi down to 5psi when I run the shower or major appliance. Any suggestions?
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Jul 2, 2014, 08:41 AM
    Defective or clogged PRV is about all I can come up with without seeing all your pipes. Check the PRV strainer (if accessible) or replace the PRV as a last resort (return as defective).

    Mark
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