I have a new toilet that has only been used about one month and the bowl is already becoming stained. Is there some kind of treatment/glaze/sealant/coating I could apply to the inside of the bowl that would keep it from staining and gathering solid wastes? I was wondering if ceramic tile & grout sealant might do it? Or maybe a teflon or silicone treatment if there is such a thing. Any ideas?

The toilet bowl's already glazed. Try this. Dip all the water out of the bowl and scrub it down good with 409 and one of those scouring pads. This will bring be ack the glaze and hopefully nothing more will stick to it. Good luck, Tom