Written by Sami Grover
But this DIY rainwater flushing toilet from the UK is about as low-tech and effective as it gets. Using an upstairs balcony to house a barrel cistern; a simple gauze filter system; some charcoal for purification, and then some gravity-fed piping to a downstairs toilet cistern, the system automatically feeds the toilet cistern with rainwater whenever it’s available. When rainwater runs out, the homeowners simply switch back to the mains water.
This post was originally published by Treehugger.
Photo from recubejim via flickr