This what came up with , in my quest to find good of both world. Runs on deer feeder batt. livewell timer. Forward and reverse toggle switch. Runs almost 12 hrs. During the summer months when the water reaches over 90 degrees it cooks your live shrimp, so to remedy this the ice in the other half cools the water down. Less down time,more live bait. http://www.youtube.com/watch?v=wtMnSsTB ... ata_player
Oh I forgot, you can also go from 1in. Of water to about 8/9 inches of water by tilting the over flow tube down.