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    raptor78's Avatar
    raptor78 Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Feb 8, 2012, 08:31 PM
    Hot water problem
    When I turn on the hot water the water starts and stops coming out and the pipe bangs. I can get it to stop banging if I turn on another sink or turn the hot water up all the way. This doesn't happen with cold water. Once the hot water is flowing the banging stops.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #2

    Feb 9, 2012, 04:33 PM
    Does this only happen in one fixture, or every fixture.
    raptor78's Avatar
    raptor78 Posts: 3, Reputation: 1
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    #3

    Feb 9, 2012, 07:59 PM
    It happens in every fixture
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #4

    Feb 9, 2012, 08:08 PM
    Do you have a hot water tank or a combination heating and domestic hot water boiler?
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #5

    Feb 10, 2012, 07:35 AM
    And do you heat your water with gas or electricity? Back to you, Tom
    raptor78's Avatar
    raptor78 Posts: 3, Reputation: 1
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    #6

    Feb 10, 2012, 10:33 AM
    It's a gas hot water tank, high efficiency
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #7

    Feb 10, 2012, 12:46 PM
    My guess would be that you have a loose washer in the cold water input stop valve to the water heater. Try closing the valve about half way and see if it makes any difference.
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