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

    Mar 15, 2007, 04:14 PM
    Overflow pipe/ ball cock
    I have a expansion tank that overfills, I have manually adjusted the float valve i.e. bent the metal arm. Adjusted the height with the shut off valve and taken out water to reduce to new level yet it fills to 2/3 of way up the float and then overflows. Any suggestions as their does not appear to be a leak from the valve and it appears to shut off the water?
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
    Ultra Member
    		  
    #2

    Mar 16, 2007, 09:17 PM
    What kind of valve is it. And if you don't know try to describe the looks of the valve.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Mar 18, 2007, 07:21 AM
    I would take the float valve apart and check the washer and seat. The washer to see i8f it's bad and needs to be replaced and the seat for any debris that may be preventing the washer from sealing when it shuts off. Good luck, Tom
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