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Thread: Capping gas line.

  1. #1
    DIY Junior Member Jason75's Avatar
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    Default Capping gas line.

    So I have a general question for plumbers located in Illinois I am looking to purchase a home in Warrenville IL. And the home that I am looking at has a gas cap in the laundry from and in the fire place but no shut off valves. There is a main shut off valve. I have talked to a few people with mixed responses does a capped gas line need a shut off valve? I would like to see the seller of the home get this work completed but need some information to go back to them and ask to have this completed before closing.

  2. #2
    Plumbing Contractor for 49 years johnjh2o1's Avatar
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    They don't need valves unless it is connected to an appliance. In fact ending the line with just a valve is far more dangerous. When they do end with a valve the valve must be plugged for safety reasons.

    John

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    Forum Admin, Expert Plumber Terry's Avatar
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    Like John has mentioned. A capped line is as safe as it gets. You're golden.

    Some gas lines are considered "futures"
    When someone decides to use them, they take off the caps and then valve them and install the fixture.
    A valve can have a slight leak. A cap doesn't.
    That's why when we put on a gas test for the inspector, we cap off "before" any valves.
    Last edited by Terry; 04-06-2013 at 04:35 PM.

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    DIY Junior Member Jason75's Avatar
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    Ok, so what I gather is that if I was to then install the dryer as gas I would then have to install a shut off valve. So the seller is not responsible to have this completed before I close. Thanks for all the help.

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    Forum Admin, Expert Plumber Terry's Avatar
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    If and when someone decides to install a dryer, it's best to do it at that time. Whoever pulls off the cap, can put the shutoff valve on and connect a flex to the dryer. One step instead of two.

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    DIY Junior Member Jason75's Avatar
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    Yeah, see I was under the assumption that the shut off valve should have already been there.

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    Moderator & Master Plumber hj's Avatar
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    The home that I am looking at has a gas cap in the laundry room and in the fire place but no shut off valves.
    However, Depending on the fireplace, it probably SHOULD have a "shutoff" valve in the wall adjacent to the fireplace.
    Last edited by Terry; 04-07-2013 at 05:16 PM. Reason: Added quote
    Licensed residential and commercial plumber

  8. #8
    DIY Junior Member Jason75's Avatar
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    The gas line has a key that controls the gas flow but its currently covered by brick

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    Moderator & Master Plumber hj's Avatar
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    Unless it is "accessible" it is not proper, or approved.
    Licensed residential and commercial plumber

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