On Fri, 5 Sep 2008 19:51:08 -0700 (PDT), Artful Dodger
wrote:

My vinyl? some kind of not porcelain ? bathtub has a nasty blackish
stain on the narrow front ledge just under the faucets. I have
applied mildewcide several times. Also applied bleach. Also tried
SofScrub. Nada.

I don't know what the stain could be from.

Is there anything else I can try?




CLR. But, you may want to investigate a possible slow leak.