"I`m gonna run an 800gph rule w 1 " hose and 1 1/2 drain. The drain is a 90 * so may need 2 thru the top of the coffin and out the existing transom thru hull."
I'm not quite there with mine, but I'm getting close. 800gph rule w/1" feeder, 1.5" overflow, and drain out below the waterline.
Livewell