Invest the money in a Stren Feeder. It has two motors the first cast the food the second motor comes on indside the hopper to distribute food down to lower motor that runs a full 2 seconds after inside motor. This ensure there is no food in the lower housing making it basically impossible for "coons" or other critters to get to the food. Look under link for information on feeder if desired.

Greg Grimes
www.lakework.com