Step 8 · Solder the New Connection
Place the fire-resistant cloth behind the joint. Heat the fitting with the propane torch, focusing the flame on the thickest part of the fitting, not the pipe. After about 15-30 seconds, touch the tip of the lead-free solder to the joint on the side opposite the flame. The heat from the fitting should instantly melt the solder, which will be drawn into the joint by capillary action. Move the solder around the entire circumference of the joint until you see a continuous silver ring. Remove the heat and allow the joint to cool naturally for several minutes. Do not touch or disturb it while it cools.