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Thread: Seeking advice - Attempt replacement of hose bibb leads to a corroded pipe

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    DIY Junior Member bang0r's Avatar
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    Default Seeking advice - Attempt replacement of hose bibb leads to a corroded pipe

    My attempt to replace a hose bibb (3/4") was not successful due to very tight access to the connecting pipe ( attachment hose.bibb.JPG.) Luckily, the other side of the wall is the garage. After cutting out the wall panel, I find out the other end of the pipe the bibb connected has undergone some severe corrosion (attachment pipe.JPG.) and I can feel some moisture around the corrosion. Also a ground copper wire is attached to this pipe.

    I'd like to tap this forum for its collected wisdom and advice to tackle such task, prior to finalize how to proceed with replacing the hose bibb and the pipe.
    Here are some of the questions I have:
    1) What is a recommended way to chisel out the cement around the pipe behind the hose bibb?
    2) The house was built in the 70s. Is replacing the 90-degree elbow (attachment pipe.JPG.) also the right thing o do, when the pipe and bibb are replaced?
    3) Should the ground wire be attached to other part of the pipe system, before the defected parts are taken out.
    4) Regarding threading the pipe to get a water-tight connection, I vaguely recall there is a rule of thumb on keep turning until about 3 to 4 threads exposed. Any advice on best practice and cautions to maximize the success of getting a water-tight connection will be appreciated.

    Thanks in advance.

    -bang0r
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