I have a radiator supply line(copper)with a pin hole from a drywall screw. This particular radiator is for the finished attic and has a separate shut off at the split from the main supply line and one at the return to the main supply. I closed both valves to stop the leak seconds after it happened. My question is this; can I use a compression repair coupling to fix the leak and do I have to blead the entire radiator system or can I just blead the one radiator that was affected? And last what would a plumber charge for this repair?
Thanks in advance.