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

  • @Downcount
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    119 months ago

    I don’t know how to fix your problem, but please post this image to one of the UFO communities.

    • @taiyang
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      39 months ago

      Oddly my thought as well. Lol