By using a torch and solder–a metal alloy that melts at around 90 degrees Celsius up to 400 degrees Celsius–connecting two copper pipes together has never been easier. As the solder melts, it fills into the tiny spaces between two copper pipes and applies a force that holds it firmly in place. Once this is done, there can be a leak free seal between two copper pipes or a pipe and a connector.

Soldering Copper Pipes Properly

To begin with, make sure that you have a torch and solder. Without these basic components, the job is worthless. Using a cloth, polish the ends of the copper pipes so that they are very shiny. You want to get rid of any dirt, grease or grime because they can inhibit a perfect seal. Because you are pushing one pipe inside the other, you want to make sure that nothing will prevent it from going in.

Once the pipes are polished, push the one pipe so that it is inside the other pipe. Once the pipe is securely in there, it's time to begin soldering. Take a torch and turn it on so that you can get a very precise point of heat. Then, move the torch around the entire connection of the two copper pipes. Take about eight to ten seconds to go around the entire pipe so that it gets very hot. The pipe needs to be hot enough to melt the solder.How to Solder Copper Pipe

With the solder in hand, touch the tip of the solder wire to the connection between the two copper pipes. If the heat is high enough, the solder will begin to melt. Due to capillary action, the solder will be pulled into the two pipes to connect them together. If the heat is not high enough, apply more heat to the two pipes until they are hot enough. Continue adding soldier, slowly, until a drop falls from the bottom. When this happens, the two pipes have enough solder to stay connected.

To finish up, take a cloth and rub down the connection between the two pipes. This gets rid of any clumps and gives the pipes a much more professional look. Be careful, though, because the pipes are still significantly hot, so you don't want to burn yourself.