How do you stop/plug up a leaking copper pipe?
it has to be dried out and soldered.
if leak is in an area that you can cut w/ tubing cutters away from other soldered joints, cut in center of leak hole,put a sharkbite coupling in to join pipe.Just stick in till it stops on both sides.Available at home depot.
It needs to have no pressure in the pipe to solder it If you can't turn off the system you can cheat in some cases by using a center punch in the area (it expands the metal and plugs the leak)
