I have used the starboard live well on my boat for storage like the original owner did. The previous owner had a black rubber plug in the black hole in the bottom. While cleaning today, I saw that there was about 3" of water in there. Apparently, the black rubber plug had come out. I am guessing that water came in through that hole.
There are 2 other pipes near the bottom of the live well that have rubber stoppers in them. Their are 2 other pipes at the upper part of the live well that you can turn off. There is also a large overflow drain.
When I took the boat out of the lake, the water didn't drain out. You can pump out some of the water by turning on the "Pump Out" starboard switch.
If the water came in through this hole, why won't it drain out? Could it be plugged up? Or does it serve some other function?