Brianritchie21787 wrote:
if its surface rust, some CLR
(Calcium, Lime, Rust remover.. you can find it at just about any hardware store)
and some fine grit sandpaper are some easy ways of removing it.
CLR and some sand paper...

Don't know what ever made you think that. I don't even think that would even be effective?
Anyways, sandblasting or POR15 will work. We had some stuff called 1Step we used on my Delta in some spots that were hidden, not reccomended. It was supposed to stop rust once you sanded it down. Sadly that rust is slowly coming back.