Re:A looming copper crunch and why recycling can’t fix it
by cfraenkel on Monday August 01, 2022 @12:48AM
(#32302182)
Three pinhole failures in 30 yr old copper pipe in ten years in this house says otherwise. We've (hopefully) torn all that out - tired of replacing 1/4 of the house every time there's another pipe failure.
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Re:A looming copper crunch and why recycling can’t fix it
by amluto on Thursday August 04, 2022 @04:25PM
(#32347869)
One possible contributing factor: flux must be removed from copper pipes (the inside!) for good performance. Plumbing codes require that flux meets ASTM B813, which means that the flux will flush out with cold water.
Sadly, even today, most plumbers will show up to a job site with petroleum-based flux that most certainly does not meet B813. It can stay in pipes for years, slowly leaching chemicals that do their job: weakening the protective oxide layer in the pipe. Also it tastes and smells terrible.