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Deburr and Clean the Pipe — Deburr and Ream the Pipe

Beginner4 hours

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How to Solder Copper Pipes for a Permanent, Watertight Joint · Step 3 of 9

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In this video

After cutting, the end of the pipe will have sharp burrs. Use a deburring tool or fine-grit sandpaper (like the P220 grit shown) to smooth the inside and outside edges of the cut. This is crucial to prevent damage to the fitting's internal O-ring. Once smooth, use a clean cloth to wipe away any copper shavings and debris from the end of the pipe.

Goal: Prepare Pipe End

  • If you don't have a deburring tool, wrapping sandpaper around the pipe and twisting it is an effective alternative.

Used in this video

  • Sandpaper (brand: ZGBZ, Tool Type: Sanding Tools)Deburring and smoothing the sharp edges of the cut copper pipe.
  • Cleaning Supplies (Tool Type: Cleaning Tool)Wiping the pipe clean of any debris or copper shavings after deburring.
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FAQs

What type of torch is best for soldering copper pipes, and how do I know I'm applying enough heat?

The K Tool International Self Igniting Propane Torch Head is sufficient for most residential copper pipe soldering. You'll know you're applying enough heat when the pipe and fitting are hot enough to melt the Oatey Safe Flo Lead-Free Solder *by touching the pipe*, not the flame. The solder should then be drawn into the joint by capillary action.

What are the critical safety precautions I must take when soldering pipes indoors?

Always have a fire extinguisher nearby and remove any flammable materials from the work area, especially when using a torch. Ensure good ventilation to disperse solder fumes, and wear safety glasses to protect your eyes from splashes or heat. It's also crucial to turn off the main water supply before starting to avoid accidents and ensure pipes are dry.

Is it really necessary to deburr, ream, and thoroughly clean the pipes before soldering?

Absolutely. Deburring and reaming with a tool like the Husky 1-5/8 in. Inner/Outer Reamer ensures a smooth pipe interior for optimal water flow and prevents solder from being blocked. Thorough cleaning with sandpaper and applying Oatey H-20 Flux are critical to remove oxidation, allowing the solder to properly bond and create a strong, watertight seal.

What are the most common reasons a soldered joint might leak, and how can I avoid them?

Leaks often occur due to insufficient cleaning, inadequate heat application, or not using enough solder. Ensure pipes are shiny clean before applying Oatey H-20 Flux, heat the joint evenly until it can melt the solder, and feed enough solder to completely fill the joint. If a joint leaks, it must be desoldered, thoroughly cleaned, and resoldered.

Transcript
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Next, deburr the cut end. I don't have a deburr tool for this three-quarter inch pipe, so I'm using some fine grit sandpaper. Then, cleaning it up. All good with no sharp edges.

Auto-generated transcript. May contain errors.