No, I had nothing to do with it. I'm not sure where he came up with the plan. It involves fine sand, charcoal, and I'm not sure what else, 5 gal bucket, some PVC fittings. the water drips through slowly, you have to let it develop the right bacteria mix, kind of like cycling an aquarium, after it's cycled, the good bacteria kill off the bad guys. He took the supplies on a mission trip to Guatamala. A lot of these 3rd world countries have a high death rate due to contaminated water. So this project allowed the villagers to have safe water. The beauty of this system is that it's low tech, and simple enough that every family could have one, it saves them from lugging water from questionable sources over long distances. The bucket is pretty heavy, would definately not be compatable with a chicken tractor, but would be great in non-freezing temps, with a stationary coop as it would provide good water from roof drainage. Of course you'd need to keep an eye on water levels and supplement any time the rain did not cooperate. If you're interested, I'll see if I can get the plans from him.