Home Depot sells a good rust remover in a red gallon jug....I think it is called rust-away, or something like that. I would put some on a rag and clean it, then clean spot with soap and water.
You can get products in the super market and Walmart too.Lime aWAY and CLR should do it.There is also a great product that you cant always find named Zuds.I have seen it in a powder form and a gel.Works great.Charlie
