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    Joe8473901's Avatar
    Joe8473901 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 8, 2012, 04:23 AM
    Gas line disconect.
    I removed a gas hot water heater. I want to cap gas line. Can I unscrew pipe and screw in doped plug without shuting main off, or is there too much pressure.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Dec 8, 2012, 07:20 AM
    Gas lines are low pressure. While you can to it that way, why not be safe and turn off the gas at the meter, do the work and turn back on.
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #3

    Dec 8, 2012, 07:41 AM
    Yeah, shut the gas off at the meter and then, if you remove the pipe and plug the line off as quickly as you think you can then you won't even have to purge air out of the lines at the other appliances! If you do have issues at the other appliances you'll know that you not only need to purge some air from the gas lines to the appliances but that you may also have blown yourself up installing the plug... ;)

    Be safe here, should only take a few seconds!

    Good luck!

    Mark
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #4

    Dec 8, 2012, 08:18 AM
    KA-BOOM! That's what happens if you attempt to work on a open and pressured gas line.
    Take Mark and Brians advice and turn the gas off at the meter. Good luck, Tom
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