C-320 bilge
Well, one assumes you bought an older 320 prior to the additon of a bilge pocket. I had hull # 84 with the shallow flat bilge. First things is since you got the floor boards up get a wet/dry vacuum and suck out that water. Next try to figure out the sources of the water into the bilge and eliminate it. On my boat the only source of water was from the AC and refrigerator condensation. I had a PSS shaft seal which eliminaed that source. On the C-320 web site it list a whole bunch of things you can do to elevate the problem. The C-320 is a great boat and I was reluctant to trade up but then I found a better boat in the C-380.