A significant portion of household water consumption occurs in the washroom, which is where projects like the Eco Bathroom concept come in handy. Together, Michael Passos and Juliana Goncalves have suggested a clever system that performs as well as modern plumbing does, but requires significantly less liquid to function well.
For increased efficiency, the toilet and the sink are actually brought together into one dual appliance with a shared tank and drainage. It seams that when someone washes his hands from the faucet, the basin stores the soapy water and reuses it to flush the next user's business down the pipe. This Eco Bathroom concept takes advantage of an incredibly simple recycling process that ought to be further explored for the sake of conserving Earth's valuable liquid resource.