Removing Stains from a Porcelain Bathtub

This stain was made by rust. Bleach will set the rust stain in, making it almost impossible to remove it. Thanks to those who suggested Barkeeper's Friend, I'll have to give that one a try. I've use Mr. Clean Magic erasers on other stains, don't know if it will work on the rust.

I second that, Barkeeper's friend works great on our porcelain sink.

I would try Barkeeper's Friend. You can get it at the cleaning isle at your grocery store. I have good luck using it on my porcelain sink.