i attempted to use galvanized pipe but had quite a bit of leaks, even with using pipe sealant. the problem being that i would tighten each fitting but they had to be positioned a certain way so there was a certain amount it could be tightened and anymore and it would be out of place.
so, any suggestions and if not, what does it take to sweat the copper? i have experience with welding and soldering, just never have done copper. other option would be to weld all galvanized fittings in place.