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C-L-R Mishap On Copper Farmsink, Please Advise

I am not a chemical engineer and I think I have ruined my copper potting sink. C-L-R was used in it, and has left some wild staining. I am in the process of remodeling my kitchen which abuts the bathroom with this very cool, old potting sink. I just really want to know if I have ruined it for good, or by some small miracle, its original finish can be brought back. Thanks for any help you can give.

Sybil Stowe
hobbyist, designer - Hingham, Massachusetts
January 6, 2008

It's probably just stained, and can be reconditioned with a metal polish intended for copper and a lot of elbow grease.

Jeffrey Holmes, CEF
Spartanburg, South Carolina
January 11, 2008

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