You probably want to find out about "wicking." I'm not sure if that's a good enough term to search on, though. Although using "evaporation pond", especially in the "Q&A, Tips and Tricks" section will get you side discussions that lead to good things. The other option is some sort of pumping over small metal things that become large surfaces in aggregate. Well that's how all the grey water systems work, really. The problem with mechanical pumping is the crap in the gray water clogs up the pump.
Lose your legs--Become a merit badge.
Remember, you're just a make-believe soldier in an artificial army.
"So many people have so little clue and there's only a finite amount of patience in the world!" --International Incident.