Note that the metal hose bibb is attached to a plastic pipe inside the wall. The hose bibb is anchored to the exterior wall with 2 screws. Before you put a wrench onto the hose bibb, make sure that the 2 screws are firming holding the hose bibb to the exterior wall. If not, you will most likely disengage the hose bibb from the plastic pipe and cause a leak inside the wall, and you will have a serious problem.
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