Everyone I talk to that plants food plots constantly begs for rain that we never get. Say I had one of those 500 gallon plastic totes with the metal cage around it and I cut the top out, put a screen over it, placed it on a big hill above a 1/2 acre food plot, and let it catch rain all year. After planting, I could water the plot with a water hose hooked to the tote. How much good would 500 gallons of water do on a 1/2 acre plot? What am I missing here? Why wouldn't this work?