How to Sweat Copper Pipe?

Sweating copper pipe begins with the preparation. The first step is cleaning the copper pipe so that the solder will form a water tight bond. Use a wire combo brush or sandpaper to remove the oxidation. Then you can apply the flux and connect the next part. Heat the pipe with a 3650 degree flame and touch the solder to the connection. When everything is prepared correctly, capillary action will draw the solder inside the connection, making it water tight.You can find more information here: