I recently moved into a new home and want to remove a stain from the bathtub. The tub is older and almost a dark pink in colour so stains show up well. I have already tried scrubbing it with Comet, Bleach/Javex spray, and CLR Bathroom foam, but nothing seems to be doing the trick. Anyone have any suggestions? I'm not sure what it could be... Thanks!
That looks far more like surface damage than 'staining' or any type of removable discolouration.
I'd say it depends what on it's made of as to your course of action. 'Plastic' [fibreglass etc], or cast iron?
If it's cast iron, it's worth having it taken away to be properly re-enamelled [DIY attempts usually look very home-made.]
Plastic, not worth it; buy a new tub. You could, of course, repeat what the last owner did - it looks like it's been re-finished once before… but that's what happens to it, especially with coarse cleaners.
From another answer - I wouldn't pay 500 to have a plastic tub re-coated. You can have a fancy new one for that. A cast iron bath, on the other hand, would be 2 grand or so to replace.