took this off a posting from 2006...
Kool aid stain remover
Add five or six drops of Blue Dawn Dishwashing liquid to two cups of
warm water. Dampen a white Terry cloth towel with this solution and
lay it over the stain. Then place a clothes iron on top of it, set on
Let this sit for fifteen minutes, and don't press down. The red stain
will start to wick up into the cloth. You should see red on the
cloth. Fold it to use a clean part or apply a new cloth, and repeat
It takes patience to get red stains out of carpet, but even year-old
Kool Aid stains have been removed using this method. Repeat the
process again and again until there is no more transfer of the red
stain to the cloth. Rinse the spot with water, blot it up, and dry it
quickly. Quick drying prevents any stain deeper down from wicking up
to the surface.
You can also try 1 part amonia to 2 parts water with same procedure.