Anyone beside me using them? Made mine out of 55 gal plastic barrels from work and cut a hole in the bottom side. Used a toilet flange reversed, short piece of 3" pipe, end cap and hole cut in top of barrel. I use a 3-4"adaptor for filling them up as it makes it a lot easier. They cleaned out my 300lbs of feed from a while ago and added another 400lb of pellet today. Gotta grow them up for the fall.