Natural Wool

How to get red dirt stains out of a wool carpet?

We have fairly old red dirt stains on our light blue wool carpet, and I am wondering what I can use to get these out with.
I don't want to go out and buy any chemicals, so please no advertisments for chemicals that you can buy at the supermarket.
I really want something natural, like bicarb soda, does that work on stubborn carpet stains?
Please, any advice would be great.
Thanks.

Mix up a little laundry detergent with hot water. Dip a floor mop in it and wring out as much as you can by hand. Use it to scrub the carpet with, Rinse it out often to pick up the dirt instead of spreading it around.

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