Our water wheel project
From Organic Design wiki
The water supply for our house needs to be raised at least five meters high so that there's a reasonable pressure for the taps and shower. We're going to make a spiral water pump to use the streams own current to pump the water up to the tank. A spiral pump is a w:water wheel that has a spiral of tube attached to the side so that it moves the water in a similar fasion to an Archimedean screw.