As part of a remodeling project, I installed a brand new stainless steel sink a few weeks ago. The model number is Kohler K-3145, Cadence, Self-Rimming Kitchen Sink. http://www.us.kohler.com/onlinecatalog/detail.jsp?prod_num145-4
With my old sink, we used to keep a bottle of liquid hand soap on the rim of the sink. We did that for about 30 years with no problems. With the new sink I happened to notice a stain on the sink in the shape of the bottom of the bottle about a week or two after I installed the sink. Hard scrubbing with dish soap won't remove it and neither will some other stuff I bought called "Stainless Steel Magic". Looking on the plus side, though, it is hardly noticeable. So, I suppose I can live with it.
So, what's the deal with this stainless steel sink staining so easily? I wonder what else I have to worry about with this new sink?