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    Stoch2's Avatar
    Stoch2 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Sep 8, 2010, 05:05 AM
    Why would gravity return line stop working?
    Turned off main water supply to add fixure in basement and after turning on the water the gravity line to upstairs kitchen stopped working.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Sep 8, 2010, 05:21 AM

    I would take a hard look at the check valve. Good luck, Tom
    Stoch2's Avatar
    Stoch2 Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Sep 13, 2010, 05:45 AM
    Comment on speedball1's post
    I closed the outlet valve on the bottom of the tank and opened the spiket located between it and the check valve and ran it until I got hot water flowing through the loop. Works fine now, had some air in the line. Thanks Tom
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