The knees on my pants are getting really dirty and the laudry soap on its own doesn't seem to be cutting it.

I have the list of 'approved' laudry detergents for my ACU's but it doesn't say anything about 'stain sticks' or pre-treaters.

I believe it DOES say, NO to Spray-N-Wash, but does not list any others.

Any suggestions?

I not only want to keep my ACU's in compliance, but also want to portray the appropriate image in the public eye and not look dirty and unkempt.