Had some serious feed waste problems for a while. always had feed on the ground and the moldy circle when we moved the tractor around. Tried different feeders and such but still lost a lot of feed on the ground and floor. Here's what seems to be working: Purchased some oil change pans about 3 inches deep and about 2 inches larger in diameter than feeder. Placed a block or two under feeder to bring it to correct height. feeder sits in pan and when feed is billed out it drops in pan. Yesterday checked feeders and was able to replace enough feed for a few chickens for a day or two in each one. Dunno if this is a problem for anyone else but it seems to be solving ours.