I use a Game Country timer mounted under a 55 gallon drum. It' s about 6 years old and never given a problem. The timer is programable to feed up to 10 times per day. The bad thing is a 6 volt lantern battery only lasts about 2 months. I used an old winch off of a boat trailer lag bolted to a nearby tree. I chained a pulley to a large limb in a tree and with 60 feet of 5/16" steel cable I just crank it up about 25 feet in the tree. It holds 300lbs of corn.