Denray Posted June 19, 2012 Report Share Posted June 19, 2012 This can't be right? Click to Enlarge 53.54?KB Click to Enlarge 62.2?KB Quote Link to comment Share on other sites More sharing options...
fyrmnk Posted June 20, 2012 Report Share Posted June 20, 2012 Only if you like growing corrosion bushes. Quote Link to comment Share on other sites More sharing options...
John Dirks Jr Posted June 20, 2012 Report Share Posted June 20, 2012 You would need a brass fitting between the copper and steel to be right. Quote Link to comment Share on other sites More sharing options...
Mark P Posted June 20, 2012 Report Share Posted June 20, 2012 so brass does not corode like other metals? Quote Link to comment Share on other sites More sharing options...
kurt Posted June 20, 2012 Report Share Posted June 20, 2012 Go here. It's got the basic noble metal scale. Mixing metals that are farthest apart has a much greater chance for electrolysis. Sticking a brass nipple in there slows or eliminates the problem. Some galvanized fittings have inner plastic sleeves to isolate dissimilar metals. I wouldn't necessarily say the installation was wrong until I checked to see if the nipple was brass and the galvanized fitting lacked interior sleeves. IOW, could be just fine. Quote Link to comment Share on other sites More sharing options...
Mark P Posted June 20, 2012 Report Share Posted June 20, 2012 Go here. It's got the basic noble metal scale. Mixing metals that are farthest apart has a much greater chance for electrolysis. Sticking a brass nipple in there slows or eliminates the problem. Some galvanized fittings have inner plastic sleeves to isolate dissimilar metals. I wouldn't necessarily say the installation was wrong until I checked to see if the nipple was brass and the galvanized fitting lacked interior sleeves. IOW, could be just fine. Interesting - Thanks Kurt. Quote Link to comment Share on other sites More sharing options...
Denray Posted June 20, 2012 Author Report Share Posted June 20, 2012 I don't remember having seen threaded copper before. Thanks for all the replies. Quote Link to comment Share on other sites More sharing options...
David Meiland Posted June 20, 2012 Report Share Posted June 20, 2012 First pic looks like a brass nipple between the galv and copper, but I would want it to be 6" long and it's not. Second pic shows copper directly with galv, and the results. Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted June 21, 2012 Report Share Posted June 21, 2012 First pic looks like a brass nipple between the galv and copper, but I would want it to be 6" long and it's not. Second pic shows copper directly with galv, and the results. What's special about 6"? Quote Link to comment Share on other sites More sharing options...
David Meiland Posted June 21, 2012 Report Share Posted June 21, 2012 Probably nothing, but when I worked in the Bay Area, the plumbing inspector that often came out wanted 6" brass nipples between galv and copper. I have no idea whether it was based on code, common practice, stuff that dead guys taught him, or what... Quote Link to comment Share on other sites More sharing options...
Denray Posted June 21, 2012 Author Report Share Posted June 21, 2012 Ah, talk to your wife about that 6" question. Quote Link to comment Share on other sites More sharing options...
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