The toilets at Torres Del Paine were heavily used to the point that they were overflowing and campgrounds had to be closed.  TTS offered a solution that could be retrofit rapidly into existing buildings and provided an alternative waste plan that could prolong the life of the builidngs.  Waste was diverted to a shallow earthen vault where it began to decompose rapidly.  The campground has re-opened with functioning toilets. 
 
For more information visit.
http://www.visittorresdelpaine.com/Camp-italiano.shtml