I am building 2 toilet systems at the moment, thought I might document it here as they are based on enviro friendly systems that do not waste any water, nor use any chemicals to treat the waste grey and black waters.
It is also based on the 'wastewater gardens' principle.
I have adapted to the Nawty could not be arsed technology and made a few refinements.
I like to call it the 'Serg System' (ShitEasyRegenerationGarden)
I shall put up photos and diagrams later....