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 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. 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. 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? 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. 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. 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. 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. 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"? 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... 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. Link to comment Share on other sites More sharing options...
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