Axiom Home Page Forums General Discussion The Water Cooler Solder for electronics used for plumbing. HELP!

I did a bit of searching around and found a few things :

1. Not sure what the US rules are, but a lot of countries have banned the use of lead-based solder for plumbing. Lead-free is not a problem other than being more of a pain to work with.

2. Rosin core solder seems to work OK on copper pipe as long as everything is clean. If it's not clean, acid core works better. Rosin core is useless on stainless steel which is a factor for some plumbing work but not (I imagine) for your case.

Others please jump in...