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How to Solder Copper Pipe

Soldering a copper pipe is relatively easy. Knowing how to solder copper pipe allows a do-it-yourselfer to install pipe yourself. A properly soldered joint will last for years (in many cases decades).

Soldering copper pipe isn’t difficult, but it takes practice. Mastering a perfectly soldered copper joint takes a bit of practice. Be patient! Your first couple of attempts may not look beautiful, but soon you’ll be soldering copper that not only doesn’t leak but also looks good.


Clean the pipe with a wire brush.

Clean it to bare metal.


Apply flux paste.

The flux paste ensures a clean surface for the solder.


Use a handheld propane torch to heat the fitting.

Just don't get it so hot that you can't hold it any more.


Melt the solder so that it flows into and fills the joint.

Finally, using a soldering iron, melt the solder so that it flows into and fills the joint between the pipe and the fitting.

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