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Some roofs have clean lines across them caused by copper cablesthat have been lain across them in the past, and I've also heardthat to kill a tree, you can drive a copper nail in to the trunk.In both cases, copper seems to have bad effects on livingorganisms, including trees and algae. Are the copper water pipes wehave in our houses likely to have a similarly bad effect on humans,just as lead pipes did ?

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Tod Thiel
Tod ThielLv2
29 Sep 2019

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