www.flushtracker.com
Ben Goldacre writes:
I'm an infrastructure nerd. When someone's digging up the road, I want to peer in. When someone comes to fix the house, I want to see what happens under the floor. When I flush a poo away, I want to see where it goes next.
Visit the site here, and there are related links at the post. For the pointer I thank a loyal MR reader.