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Clean Copper Pipes — Clean and Prepare the Copper Pipe

Beginner

Part of project

Bathtub Spout & Diverter Replacement: A Complete DIY Guide · Step 3 of 5

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In this video

Thoroughly clean the outside of the existing copper pipes using sandpaper or emery cloth. The surface must be clean and shiny for the solder to adhere properly. Use an inspection mirror to check the back of the pipes and ensure they are fully cleaned all the way around. This is a critical step for creating a leak-free seal.

Goal: Prepare copper pipes for soldering

  • A clean pipe is essential for a good solder joint. Don't rush this step.

Used in this video

  • Sandpaper (Tool Type: Painting Tools, Sandpaper Grit: Medium) — Cleaning the outside of the copper pipes.
  • Inspection Mirror (Tool Type: Measuring Tools) · optional — Inspecting the back of the pipes in the tight space.
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FAQs

How difficult is replacing a bathtub spout and diverter for a DIY beginner, and how long does it usually take?

This is a beginner-friendly project, often taking only 30-60 minutes. The most challenging part can be removing a stubborn old spout or ensuring a leak-free seal on the new one. No specialized skills beyond basic tool use are typically required.

Besides the listed tools and materials, are there any other essentials or helpful items I should have on hand?

It's highly recommended to have Teflon tape (pipe thread tape) for screw-on spouts, even if using plumber's putty for the base. A small bucket, rags, or a towel can also be useful for catching any residual water when the old spout is removed from the pipe. Having a flashlight can also help inspect the pipe.

What critical safety steps should I follow, especially regarding water and potential leaks?

Always ensure the main water supply to the bathtub is completely shut off before starting to prevent flooding. After installation, turn the water back on slowly and carefully inspect for any leaks around the spout connection immediately. Have towels ready to quickly address any drips or leaks.

What are the most common mistakes beginners make when replacing a bathtub spout, and how can I avoid them?

A common mistake is not thoroughly cleaning the copper pipe threads, which can lead to leaks. Another is overtightening the new spout, potentially damaging the pipe or spout itself; tighten firmly but not excessively. Ensure you use the correct type of sealant (Teflon tape or plumber's putty) for your specific spout type.

Transcript
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here. We're going to attempt to try to do is not break this wall out and have to put a plate in there. If we have to, then that's what we're going to have to do. But we would be very careful because this opening is very sharp edges this tile. So it would be sparse to have a bloody nubble before this is over with. We're going to prep the copper outro good with some sandcloth. All right, so there's where that shower is going to go. We'll put our little mirror up there. There's a little bit of solder still stuck up there, but every melt looks fairly clean. We're going closely on these delta valves and stuff. They always stamp what part

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