Surely an easy win would be the men's urinals. Collect all the pee, and just divert water away via a valve when the cleaning cycle is running. Maybe there is en

Surely an easy win would be the men's urinals. Collect all the pee, and just divert water away via a valve when the cleaning cycle is running. Maybe there is enough money in it for a company to install a system like that for free in restaurants, airports, public buildings etc.