Step 9 · Inspect and Test
Perform a final visual inspection of the cooled joint. A properly soldered joint will exhibit a continuous, smooth, and shiny silver fillet of solder completely encircling the seam where the pipe meets the fitting. There should be no gaps, pinholes, or clumps. Once you have completed all your connections and are confident in their appearance, you can test your work. Close all faucets that were opened for draining. Go to the main water shutoff valve and turn it on very slowly to allow the pipes to refill gradually, preventing water hammer. Once the system is pressurized, carefully inspect all the new joints for any signs of dripping or leaks.
Tools and Materials
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