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Thread: How to replace a copper fitting close to another fitting

  1. #1

    Default How to replace a copper fitting close to another fitting

    Sorry for the duplicate post. I posted this in the remodel forum when I should have posted in plumbing.

    I am working on a basement finish and I have just completed installing inch hot and cold copper supply lines for a new bathroom. I installed shutoffs before putting in the supply lines. I just turned on the water to pressurize the lines and I have 1 leak. There is a 90 degree elbow about 1 inch from the shut off in the hot supply line. The joint in the fitting on the shut-off side is the leaker. So now I think I need to:
    1) drain the lines
    2) heat up that fitting and take it apart
    3) clean the pipe up, removing all of the old solder
    4) re-solder in a new fitting

    My question is will I compromise the soldered joint in the shutoff (that is only one inch away) when I heat and take apart the fitting I need to replace? Are there any steps I can take to protect the nearby soldered joint before heating up the one I need to take apart? I am an amateur and I have never taken apart a soldered fitting before. Any advice would be appreciated.

    Thanks, Jack

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    Heating are reheating is fine.

    You can put a damp rag on the part that is done too.

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