This is the system we are planning on. I know a guy that shut his down because he could not give away the food overages. It occupied a building about 12x20. He was not trying to sell me on it. I was there to look at his solar system and noticed it and asked about it. He didn't even want to talk about it.
http://megadroughtexposed.com/nht_v12/front-ctrl.php?param1=nht_v12&hop=0077491
