Sweating basics (ridgid copper)

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Old 03-18-13, 06:49 PM
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Sweating basics (ridgid copper)

I have successfully sweated half inch copper water pipe in the past but i always doubt myself on multiple joints or tees. Take a half inch copper tee for example, i always overthink if by the time i get to the third node the consistant heat will weaken the integrity of the first two nodes done. Is it advisable to do each node, let it cool than wrap it it in a damp cloth to isolate it and move on to the next.

Also does flux go bad? I shave some flux it looks good but its about 7 years old

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Old 03-19-13, 01:05 AM
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Is it advisable to do each node, let it cool than wrap it it in a damp cloth to isolate it and move on to the next.
Not at all. The heat dissipates pretty quickly thru copper and the solder joint sets pretty fast. Just keep carrying on until your finished. Heat the connector also instead of the pipe. Doing that will insure that the solder is drawn into the fitting.

Most important thing when soldering....... the copper MUST be clean. Fittings and pipe.

Flux is basically an acid. I don't think it goes bad with age.
 
 

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