Originally Posted by
thedude
On the manual drain switch at the helm (not the aerator pump buttons)- you should have Auto, Empty and Recirc. Empty should be obvious. Recirc means that when the pump runs, it is drawing water from inside the livewell and shooting it back through the aerator nozzles. Auto means that when the aerator runs it will draw fresh water from the lake and dump into the livewell. The excess goes out the overflow. Additionally - if there is no water to be drawn (like you're on plane or on a trailer) the stopper remains closed and "auto" works the same as recirc by drawing from inside the well.