Help cleaning the steps

anyone ever use Jacks Magic or another chemical to clean the steps. Mine are off white and yellow from winter leaves. I heard to use citric acid but a pool guy in the neighborhood said to try jacks magic. I just dont want to spend the 40 for jacks if its not worth it. Please help asap.
J

I've use Mr. Clean Magic Eraser with great success.

romeomontego,
Please don't post the same question in more than one forum--it tends to add to the clutter and make it hard to keep all the responses in one place. I'm going to lock this one, and please, anybody else that wants to respond, respond to romeomontego's post in the Metals section.

Thanks

Janet