It doesen't get any easier than this. Just a rectangle 5 gal. water bottle stuck on top of the hopper. I used the round ones too and they work just as well.
That's only 13.5 lbs in there and I've put as much as 20.
Another plus would be it feeds slower and doesn't put alot of weight against rollers , if your drill isn't that strong.
DIRTY GARAGE BREWING CO.