I’ve tried scrubbing it several times with bar keepers friend soft cleanser and although it improves, it never goes away completely and it always comes back.
I’ve tried scrubbing it several times with bar keepers friend soft cleanser and although it improves, it never goes away completely and it always comes back.
I’m curious as well, I have the same thing.
I helped a friend with a bathtub that had similar stains , but it was almost black. I have a high grid polishing sponge for email, but it was too much, so i whipped out car polish and it worked.