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.

close up picture of bathtub floor discolouration

    • BruceTwarzen@kbin.social
      1·
      19 days ago

      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.