From safe and legal greywater recycling to urban humanure toilets, we've featured plenty of DIY plumbing aimed at more efficient water use. But this DIY rainwater flushing toilet from the UK is about ...

Gregg Semler hasn’t given up on the idea of scavenging the pipework at gravity-fed municipal water systems for cheap and clean electricity. Gregg Semler hasn’t given up on the idea of scavenging the ...