How to Solder Copper Pipe (Important Tips!!) — by Home Repair Tutor

Posted by in Plumber Talk, on April 28, 2017

Do you need to learn how to solder copper pipe?

Today’s tutorial will share how to cut, prep, and solder copper pipe.

It’s kind of fun. And if you practice you’ll be up and running in no time.

The first step is to cut your copper pipe. I like the AutoCut pipe cutting tool for tight spaces. It costs about and simply clamps onto the pipe. Turn it in the direction of the arrow and you’ll cut your pipe in about 10 seconds.

Once that’s done make sure to ream the pipe. You’ll need a reaming tool. This helps prevent the pipe from being loud or pitting over time, which can lead to pinhole leaks. Reaming also helps the solder job.

Apply a thin coat of flux, I use Laco in the video, using an acid brush. You shouldn’t leave gobs of flux on the pipe. This can lead to flux getting inside the pipe and pitting. Apply a thin layer of flux to the fitting as well. Check that none of the bristles from the brush are on the pipe or fitting. This will create a gap in the solder and ultimately a leak.

After fluxing, immediately put all the pipes and fittings together to avoid dirt contamination.

Heat the pipe about 1-2 inches below the fitting, about 10 seconds. Then heat the fitting just behind the cup. Move your torch back and forth to heat the entire fitting. Dab the solder onto fitting/pipe transition and once it melts continue this process until the solder fills the entire fitting.

Wipe down the outside of the pipe with a damp cloth to remove flux.

Wear gloves, eye protection and have a fire extinguisher handy when soldering.

Check out my video for all the juicy details

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There’s nothing better than helping a friend out with a DIY video that could make their project go a lot better.

Thanks for watching my video, take care, and see you in the next one!!



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