On Feb 20, 12:43 pm, GoHabsGo wrote:
Hi all,

I have a copper water pipe behind a drywall ceiling. Turns out that when
the ceiling was installed a drywall screw punctured the pipe. Many years
passed until the screw rusted enough and it started dripping, causing a
stain on the drywall ceiling. I listened to the recommendation of a guy on
the HD floor and patched it with a metal epoxy putty. That held tight for
a few years, now the stain is back.

Is there a simple way to patch this by cutting out the bad spot and using
pressure fittings or something similar? I don't want to try soldering in
that confined space. Any suggestions?

Two alternatives besides the other suggestions so far...

There are repair couplings which are same as a standard coupling
except don't have the ridge on the inside so you can cut the pipe,
slide it on, then slide it back over the cut area where there might
not be room/flexibility to get a standard coupling in.

Second, for a very tiny pinhole such as this, simply soldering the
hole itself will be a permanent repair as well.

As for the torch in the area, use a piece of tin behind the pipe as a
heat shield to keep the direct flame from contact w/ whatever and
they'll be no problem.