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Bonding ..again !
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<blockquote data-quote="Geoff1946" data-source="post: 479275" data-attributes="member: 28452"><p>I was thinking of corrosion of the pipe by chemicals in the concrete. I know that copper is used for earthing electrodes but then a bit of corrosion won't matter. In thin walled water or gas pipe it could be a different story. When I've done plumbing work I've always sleeved pipes passing through masonry with the next size up. to bury in plaster I've always taped it. I can't remember now who told me to; perhaps it's over cautious.</p></blockquote><p></p>
[QUOTE="Geoff1946, post: 479275, member: 28452"] I was thinking of corrosion of the pipe by chemicals in the concrete. I know that copper is used for earthing electrodes but then a bit of corrosion won't matter. In thin walled water or gas pipe it could be a different story. When I've done plumbing work I've always sleeved pipes passing through masonry with the next size up. to bury in plaster I've always taped it. I can't remember now who told me to; perhaps it's over cautious. [/QUOTE]
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