Think You Know Plumbing? Take This Ultimate Tools Quiz and Prove It!Share:FacebookPinterestTwitterMailWhich tool is used to melt and join copper pipes with solder?30%Next Correct Incorrect A propane torch heats the pipe and solder, creating a watertight seal. Which tool is used to melt and join copper pipes with solder? Hammer Propane torch Pipe wrench Hacksaw 30%