The architect and engineer have completed plans for purifying water for bathing, cooking and drinking. They are really ingenious and comprehensive.
Additionally, the plans for cleaning used grey and black water are also fully developed. This is an extremely simple process with an output of clean water and methane gas which we will capture and burn in the kitchen. Imagine (or don’t), that morning coffee might be made using water we filtered from the lake and heated by gas from waste flushed the previous day!