How can you remove marks left by steel wool from a toilet?
You can polish the surface with a fine grit wet/dry sandpaper.
Don't use anything lower than a 400 grit. This works great, it will
grind away mineral deposits and smooth the porcelain, no harsh
Or, if you prefer:
Try rubbing the marks with some baking soda and a wet towel or
And as a last resort:
Pour a cup or so of bleach in the bowl and let it set all