Step 6 · Install and Solder the New Sillcock
From the outside, carefully slide the new sillcock through the hole in the wall until the flange is flush with the exterior siding. Ensure the spigot is oriented correctly, with the spout pointing slightly downwards for proper drainage. Go back inside. Push the flux-coated end of the supply pipe firmly into the flux-coated fitting of the new sillcock. Place your heat shield behind the joint. Using the propane torch, heat the fitting, not the pipe or the solder. After about 30-45 seconds of even heating, touch the tip of the lead-free solder to the seam where the pipe meets the fitting. If the joint is hot enough, the solder will melt and be instantly drawn into the joint, creating a silver ring. Apply solder around the entire joint until it is filled. Let the joint cool naturally for several minutes until it is cool to the touch. Do not quench it with water.