During several winters my Hunter 23 was on a trailer and on a slant to drain the water out of the cockpit. I had place a tarp over the cabin part, to avoid leaks into the cabin which really works. After a heavy rain I have had a small amount of water in the lower area near the battery compartment and water seeping through the holes that were originally made during boat construction by the SS ballast bolts. I understand this is normal, but why is the bilge water by the ballast bolts hardly ever present in the summer, when the boat is in the water at the dock for 7 months? Where does the water from the weep holes come from? There is no tarp on the cabin during the summer months.