Livewell issues

Joined
Aug 4, 2012
Location
Moses Lake, WA, USA
#1
Ok...I feel stupid about this. I'm new to bassboats, last summer picked up a used Champion 184.

When I'm on the water, my livewell is partly filling up with water (1/4 of the way or so) even when I don't run the pump to fill it, and the plunger that drains the livewell is closed. My livewell drains out the main transom plug, and that is obviously in while on the water, so water can't be getting in the livewell thru that route.

Any idea what is going on and how to fix it? Thanks.