"not even barbarians crap in their drinking water"
Unfortunately this is a practice that we are all too comfortable with.
We have to take responsibility for our 'waste' and that does mean all of it. Turn your 'waste' into a resource...
COMPOST YOUR POO!
It's much easier than you may think. I have attached a PDF of the humanure handbook by Joseph Jenkins. It's a really fun, easy, educational read.
It can be done almost anywhere. My friends compost their humanure in suburban Melbourne. Very simple and no smell.
have fun ;)