People from different states/countries each talking about a zillion different sets of rules?
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13 years ago
Can galvanized fittings be used with black iron pipe?
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13 years ago
More or less true - but "some" galvanized fittings appear to have zinc in the female threaded portion. Not with hot dip galvanizing, for sure - but in "bright zinc" "galvanizing".
This does not change the fact that the zinc is NOT a corrosion risk.
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13 years ago
Use Google. Erase.......
it is similar to Google.Takeback (what you use when you want retrieve an email or posting that you wish you hadn't sent.)
cheers Bob
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13 years ago
DD_BobK wrote: ...
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Can't help; once a posting hits usenet, it's gone. Virtually no servers honor cancel messages.
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13 years ago
Would that it were so. That only works with Google posting, right? I'm talking about all of the forums and sources out there where this topic comes up repeatedly and the same information gets batted about. Since we've 'solved' it, we should save other people from having to wade through the extraneous and misleading information. Maybe post a Wikipedia article and just point back to that whenever it comes up here? Post the Wiki link on those other forums?
R- Vote on answer
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13 years ago
Why in the world would the Chinese use too much zinc in the copper alloy? That would be unethical and greedy. Could never happen. ;)
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13 years ago
On 1/23/2011 7:27 AM RicodJour spake thus:
[massive snipola]
Like they say, good luck with that!
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13 years ago
On 1/23/2011 5:39 AM Art Todesco spake thus:
What you heard was essentially correct. When you tighten a pipe fitting with any kind of metal pipe--black iron, galvanized, brass, bronze, etc., both threads deform--in other words, get squished--enough to remove almost all gaps between them. That's how pipes get sealed. (What few microscopic gaps may be left are filled by Teflon tape or pipe thread compound.)
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13 years ago
So that people who want cheap stuff will have things to buy?
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5 years ago
replying to David Nebenzahl, villiewe wrote: Simple: I assumed the black iron was so you could tell which lines were gas while galvanized was water. When I had this house inspected 41 years ago before buying, he suggested I ask the owner was was the purpose of the galvanized iron going to the attic! I paid him anyway!