Have you already boiled up a pot of water with a tablespoon of washing soda? For me, once the water cools again often the black just sloughs off.

They probably won't bat an eye (as long as DH helps them get it out of the car). If they hem and haw, ask for a credit toward a different purchase so they don't feel like they're being abused. They really do get this all the time.

Well bless your heart ....thank you !!!

I guess that's the risk you take when you install a sink made of a soft, finicky material with a fake finish. Bet it cost a mint, too. :-( That sink really isn't any more functional than the overpriced "stainless steel" refrigerators that are just plain carbon steel coated with a phony stainless-look finish, and the same cheap disposable imported guts inside. If you want it to end up with a normal patina, first you're going to have to scrub the rest of the factory finish off, getting up to the edge and right down into that texture. You'll probably also want to polish it to remove the coarse grit scratches that the BKF left behind. I'd probably try fine buffing compound, the stuff auto detailers use, from a pro auto finish jobber. Stay away from the big name auto cleaners at the chain parts stores, they usually contain silicones or other shine-up residues, and you don't want those. I might also try progressively finer steel wool. Steel's harder than copper. Then just let time and hand washing have their way with it. Clean it with a mild non-abrasive cleaner when the soap scum builds up. That's a bunch of work, though. If it were my house, I'd tear out that bit of conspicuous consumption, and put in a nice normal porcelain-on-steel vanity sink. That would nuke the problem, and make cleaning just about foolproof to boot. Hey, copper's going for around $2 a pound at the scrap yards these days, so you could even get a little of your investment back. :-)