While inspecting after my first winter lay-up, I discovered water under the floorboards of my 1986 Hunter 23.5. I vacuumed it up and tried to get as much from the holes drilled. This much water returned the next day. Where could it be coming from? At first I thought it came in from rain/snow, but there has been none since vacuuming. Should I be concerned? Thanks for all your help Bob Noble Beaver Lake Ne