How Do You Solder Copper Water Pipe?
Anyone can solder copper water pipes if proper preparation is made. If pipes to be soldered are in use, turn off water supply and relieve water pressure in work area before attempting the repair or modification and allow pipes to drain thoroughly. Open pipe where repair/modification is to be made and drain any remaining water. Connection area must be drained completely. Clean outside of pipes and inside of fittings to be soldered thoroughly with emery paper (use fitting brush on inside of fittings. Remove any debris with a clean cloth and avoid touching cleaned areas with your hands. Apply soldering paste to inside of fittings and outside of pipes in connection area. Make sure to cover connection area completely. Heat joint area with torch. Test whether connection area is hot enough by touching end of roll of solder to heated area. When solder melts easily the joint is hot enough. Feed more solder around joint circumference to make connection. Solder all connections on any one fitting