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Cut the Pipe — Cut Out the Damaged Section

Beginner3 hours

Part of project

How to Repair a Leaking Copper Pipe with a Compression Coupling · Step 3 of 7

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In this video

Using a manual pipe cutter, the pipe is cut at a pre-marked location. The cutter is placed around the pipe and tightened until the cutting wheel makes contact. The tool is rotated around the pipe, and the handle is tightened incrementally (about a half turn per rotation) to slowly deepen the cut. This process is repeated until the pipe is severed, ensuring a clean and straight edge.

Goal: Make a Clean Cut on the Pipe

  • Tighten the cutter gradually with each rotation to avoid damaging the cutting wheel and to ensure a smooth cut.

Used in this video

  • Pipe Cutter (brand: Ridgid, Pipe Cutter Type: Manual pipe cutter)Making a clean, perpendicular cut on the pipe before threading.
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FAQs

How difficult is this repair for a beginner, and what if it takes longer than 3 hours?

This repair is rated beginner because it avoids complex techniques like soldering. While the estimated time is 3 hours, allow extra time for locating the leak, gathering tools, and ensuring the pipe system is fully drained. Rushing can lead to mistakes, so prioritize careful, precise work over speed.

Do I really need all the specific tools listed, or can I use substitutes for this project?

While tools like a dedicated tubing cutter and reamer are highly recommended for achieving clean, burr-free pipe ends crucial for a leak-proof seal, some items like permanent markers or measuring tape can be substituted with similar household tools. An adjustable wrench is essential, so ensure you have one that fits the coupling nuts securely.

What's the most common mistake beginners make with compression fittings, and how can I avoid a new leak?

The most common mistake is not properly preparing the pipe ends (cutting straight, deburring, and cleaning) or improperly tightening the compression nuts. Ensure pipe ends are perfectly smooth and burr-free, and tighten the nuts until snug, then give an additional 1/2 to 3/4 turn. Avoid over-tightening, which can deform the ferrule or strip threads, or under-tightening, which causes leaks.

What are the most important safety precautions I should take when repairing a leaking copper pipe?

Always shut off the main water supply and drain the pipes completely before starting to prevent water damage and potential electrical hazards. Wear safety glasses to protect your eyes from debris, especially when cutting or deburring the pipe. Be mindful of sharp edges on cut pipes.

Transcript
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marked as to where I want to cut it off and you could cut this off with a hacksaw. If you're going to be threading them and you need to get it pretty straight so it's better to use something like this a dedicated pipe threader. These have replaceable blades on them too. They last a really long time especially if you're you know just a homeowner like me. And so you just tighten this down and just get it so you want to make sure that the wheels are straight just get it just a little bit tight and run it around. Now what I normally do is I give this I give it a half turn every time I go around. Sometimes I go around twice you can tell it can be it'll be kind of stiff to turn and then as it then it gets easier it's time to tighten it down. But like I said I tighten it about a half a turn every time I come around. And there you can see it cut it right off. All right so now we're ready to thread that. I'm

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