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How do I permanently get rid of this discolouration in my bathtub? (I have hard water)
(sh.itjust.works)
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 don't know how to fix your problem, but please post this image to one of the UFO communities.
Oddly my thought as well. Lol