How to Solder Copper Pipe The CORRECT Way | GOT2LEARN

Summary

This video provides a step-by-step guide to soldering copper pipes for a leak-free joint. The presenter explains three crucial steps: preparation, soldering, and finalizing. Key tools include a torch, fuel, lighter, sandpaper, wire brushes, flux, and solder. Proper cleaning of the pipe and fitting, applying flux, and heating the joint using capillary action are essential to ensure a strong connection. Tips like heating the joint from the bottom up and inspecting the final solder are highlighted. The video concludes with advice on cooling and cleaning the joint for long-lasting durability.

Takeaways

• 🔧 Thorough preparation is crucial for leak-free soldering; skipping it increases the risk of leaks and damage.
• 🔥 A torch is essential for soldering copper pipes, with propane and MAP gas as fuel options. MAP gas heats joints faster.
• 🕯️ If your torch lacks a built-in igniter, use a separate igniter or an affordable lighter.
• 🧼 Sandpaper or emery cloth and wire brushes are needed to clean the pipe and fittings before soldering, ensuring a good bond.
• 💧 Soldering flux prevents oxidation, which is necessary for proper solder adhesion. Lead-free solder is recommended for water lines.
• 🪛 Apply enough flux to both surfaces before joining them for a strong, durable joint.
• 🔺 Capillary action draws melted solder into narrow spaces, so start heating at the bottom of the joint for optimal flow.
• 🔍 After applying solder, inspect the joint to ensure it’s heated evenly and fully covered.
• 🧴 Some plumbers use flux to clean the joint while it’s hot, but this can cause fractures; waiting for it to cool is safer.
• 🧽 Once cool, wipe off excess flux to prevent corrosion over time, ensuring a lasting, leak-free joint.

Q & A

What are the three steps to soldering a copper joint?

The three steps to soldering a copper joint are preparation, the soldering process, and finalizing the joint.

Why is preparation important when soldering copper pipes?

Preparation is crucial for achieving a leak-free joint. Skipping or half-doing this step can cause leaks and potentially damage property.

What type of torch is recommended for DIY soldering work?

For DIY work, a torch costing between 20 to 50 Canadian dollars is sufficient. Commercial plumbers may use better models, but basic torches will work for minor tasks.

What is the difference between propane and MAP gas?

MAP gas burns hotter than propane, which allows it to heat up joints faster. The choice between the two depends on personal preference.

Why is flux essential in the soldering process?

Flux prevents oxidation of the base and filler material during soldering. Without it, soldering is impossible as the solder will not adhere properly.

What types of solder are commonly used, and when should each be used?

Lead-free solder (95/5) is used for potable water lines, while lead-solder (50/50) can be used for copper drains, as it won't come into contact with drinking water.

How should you clean the pipe and fitting before soldering?

Sand the pipe with sandpaper or emery cloth until it is free of surface corrosion or dirt. Use a wire brush to clean the inside of the fitting, ensuring both surfaces are clean for soldering.

What is the purpose of heating the joint from the bottom during soldering?

Heating the joint from the bottom ensures that the solder will flow upwards due to capillary action. Starting from the top would cause the solder to flow down without filling the bottom part of the joint.

What is capillary action and why is it important in soldering?

Capillary action is the ability of a liquid (in this case, solder) to flow in narrow spaces without external forces. It allows solder to fill the joint evenly.

What should you do after the solder has solidified in the joint?

Once the solder has solidified, use a rag to wipe off excess flux, as leftover flux can corrode the pipe over time. Allow the joint to cool naturally to avoid fracturing.