Posted by Bobby T. on December 12, 1997 at 06:20:11:
I'd like to try a bit of replacing an old, long horizontal run of galvanized iron water supply in my unfinished basement with copper - in hopes of getting some better pressure to some 1st and/or 2nd flr. fixtures. When I remove about this 20' section, do I have to do so at a threaded joint, and put a simple threaded to sweat joint and run the copper? Or do I need a "dielectric" fitting at each union between the two pipes? Also, can someone give the 10-cent explaination of the 'type' of copper pipe to use? Not the size, but I've seen some graded by 'type'... and helpful hints? THANKS!