Tommy Mac Discussions › Forums › Fix-it Forum: Home Improvement & Do It Yourself Repair Forum › plumber needed › soldering copper pipe
December 21, 2004 at 9:39 am #255984
a trick to help soldering when ther is moisture in the pipes is to use a piece of white bread without the crust, make balls slightly larger than the opening in the pipes. push a ball into the pipe several inches to act as a stopper for the water. after solder re[pair, turn on the water, open faucets and the bread will be pushed out of the system by the water preasure.
it works for me.