Solder Copper Pipe Connections
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What happens here
Apply a thin, even layer of plumbing flux to all surfaces that will be soldered: the outside of the copper pipe ends and the inside of the copper fittings. Insert the prepared copper pipe and fittings into their final positions, ensuring they are fully seated. Place a burn mat or fire-resistant putty around the work area to protect the wall and floor from the torch flame. Using a propane torch, heat the copper joint evenly until the flux begins to bubble and turn clear. Touch the solder to the joint; it should melt and be drawn into the joint by capillary action. Continue heating and applying solder until a complete bead forms around the entire joint. Repeat for all connections. After soldering, use a wet rag to wipe away excess flux and cool the joints.
Goal: Create strong, leak-proof solder joints for the new plumbing.
Tools and materials
- Burn Mat — Protecting surrounding materials from heat and flame during soldering
- Fire Extinguisher — Emergency fire suppression
- Flux Brush — Applying flux evenly to copper surfaces
- Inspection Mirror — Checking the quality of solder joints in hard-to-see areas
- Lead-Free Solder Silvabrite 100 — Creating the permanent bond between copper pipes and fittings
- Plumbing Flux Hercules — Cleaning and preparing copper surfaces for solder adhesion
- Propane Torch Bernzomatic — Heating copper pipes and fittings for soldering
- Spray Bottle with Water — Cooling joints and extinguishing small flames
- Wet Rag — Wiping excess flux and cooling soldered joints