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Thread: gas line

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

    What is the inside coating material for galvanized gas pipes?
    It appears that hardware store mistakenly sold me a gas line to replace a cold water pipe. This resulted in a chemical smell when faucet is turned on.
    Should I replace the galvanized gas pipe?

  2. #2
    TROJAN WORLDWIDE SALES RP MACPLUMB 777's Avatar
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    Default Galv. Pipe coating

    Galvanized pipe is just black iron pipe that has been "hot" dipped in a galvanized
    coating inside and out it is not "magic" for gas or water until it has been used for that purpose then it can only be used for the same use again,

    if you have a funny taste it could be from thread cutting oil used to tread the piece of pipe or it could be something else, like thread dope etc,

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  3. #3
    Retired Defense Industry Engineer jadnashua's Avatar
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    Default

    Essentially, it may take awhile to flush out the crud. If it is cold water, it will take longer than hot water. It won't help your water/sewer bill, but maybe just open the valve fully and let it run for an hour or so and see what happens. If the pipe feeds more than one valve, open them all to maximize the flow, since most faucets are flow restricted. They say a quart of oil can pollute a million gallons of water, it doesn't take much.

    Maybe a better question is why did you use galvanized pipe?
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  4. #4
    Moderator & Master Plumber hj's Avatar
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    Default pipe

    There is no "galvanized gas pipe". There is only galvanized pipe and it can be used for anything water, gas, drains, oil, or anything else. The only way it could have an "odor" would be if it was an old pipe which had been used for gas at one time.

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