Difference between revisions of "Talk:Plumbing"
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--[[User:John Stumbles|John Stumbles]] 11:04, 24 December 2006 (GMT) | --[[User:John Stumbles|John Stumbles]] 11:04, 24 December 2006 (GMT) | ||
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| + | Millions of houses have copper in concrete, but corrosion leaks are rare, smoking deaths are common. Not comparable. | ||
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| + | The prime reason for denso et al is thermal expansion rather than corrosion. Copper carrying hot water in concrete can pull soldered joints apart or break itself as it expands and the conrete doesn't. There was a thread debating this in ukdiy recentishly. | ||
Revision as of 12:03, 24 December 2006
I've had copper half buried in regularly wet cement for decades. I chipped a bit away to find no corrosion. Lots of houses have pipes in floor concrete, but resulting leaks are very rare.
(Reply to anonymous contributor) That's a bit like saying my Auntie Elsie smoked 60 a day all her life and didn't get lung cancer, heart disease etc and therefore it's a myth that smoking is harmful. FWIW I have several times seen copper pipes buried in concrete that are corroding. It's generally accepted that this may happen and that it is bad practice to install pipework this way (illegal in the case of gas), so I've changed the text to indicate this.
--John Stumbles 11:04, 24 December 2006 (GMT)
Millions of houses have copper in concrete, but corrosion leaks are rare, smoking deaths are common. Not comparable.
The prime reason for denso et al is thermal expansion rather than corrosion. Copper carrying hot water in concrete can pull soldered joints apart or break itself as it expands and the conrete doesn't. There was a thread debating this in ukdiy recentishly.