Had you been running your pump at all during the day? My comp takes on a bit of water as well, and I just figure it as the cheap plug from walmart I use, or from the several holes I drilled in the transom for my lights, water isn't all that bad, the pump takes care of it instantly.

Your water on the floor problem might be very elementary. Mine does the same thing. Pick up the middle section of the rear seat, just behind the driveshaft to see the removeable floorboard. Does it has a hole cut in it like mine does? If so, I can GUARANTEE, it is just the water splashing through that hole and running up the side of the boat on the carpet, because I watched my boat do this first hand when I was testing any severe leaks from the transom light install.

When you slowdown, any water in the bilge will rush to the back and splash through the hole, and will rush forward as the boat settles over the carpet, then disipate back into the bilge. I just use it as a good "Hey turn the bilge on dummy" reminder incase I forget.