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    dankeller's Avatar
    dankeller Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Mar 17, 2008, 04:03 PM
    Banging cold mains water pipe in bathroom.
    I'm just wondering if you could give me some advice as to what to do...
    When I turn on the cold water tap (mains pressure water) in the bathroom upstairs, water comes out normally until I turn it a bit more until water should be coming out fast, it then slows down then I hear banging and the water only chugs out. Any hints as to what's wrong?
    xxluvmexxhatemexx's Avatar
    xxluvmexxhatemexx Posts: 45, Reputation: 0
    Junior Member
    		  
    #2

    Mar 17, 2008, 04:14 PM
    I think that it might be clogged but I'm no expert try to snake it out.
    dankeller's Avatar
    dankeller Posts: 4, Reputation: 1
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    #3

    Mar 17, 2008, 04:42 PM
    What do you mean "snake it out">
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #4

    Mar 17, 2008, 07:16 PM
    You either have a loose washer in the cold water valve or an obstruction. Turn off water at the stop valve underneath the sink, remove the cold water handle and then remove the stem. Check that the screw holding the washer is tight. Don't just look at it, take a screwdriver and tighten it if you can. Might want to replace the washer while you have it out. While you have the stem out, put a cloth over the stem opening and turn on the water slightly at the stop valve and flush the valve. You may have an obstruction (my favorite thing to blame is solder in the pipes that gets lodged in the valve). If you have an obstruction you may or may not be able to flush it out.
    It sounds like you have a loose washer.
    dankeller's Avatar
    dankeller Posts: 4, Reputation: 1
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    #5

    Mar 17, 2008, 08:29 PM
    Thanks Harold, I will try it when I get home tonight...
    dankeller's Avatar
    dankeller Posts: 4, Reputation: 1
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    #6

    Mar 18, 2008, 12:31 AM
    Hey, I undid the tap, but there is no washer to tighten, just one of the washers that sit inside the tap.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #7

    Mar 18, 2008, 06:08 AM
    Loud noise when cold mains tap turned on
    dankeller
    New Member Join Date: Mar 2008
    Posts: 4
    Hi,
    I'm just wondering if you could give me some advice as to what to do...
    When I turn on the cold water tap (mains pressure water) in the bathroom upstairs, water comes out normally until I turn it a bit more until water should be coming out fast, it then slows down then I hear banging and the water only chugs out. Any hints as to what's wrong?
    Cheers,
    Dan
    Good morning Dan,

    I need a little information. Is this a bath/shower faucet or a lavatory faucet?
    Is it one handle or two knobs? What's the brand name of the faucet? How old is it? Back to you Dan. Tom
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #8

    Mar 18, 2008, 07:29 PM
    Quote Originally Posted by dankeller
    but there is no washer to tighten, just one of the washers that sit inside the tap.
    Could you elaborate on that.

    How about looking at the hot side and see if it's the same.
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