Keep the aft berth dry by diverting water from the aft compartment to the bilge.

A leak in the cockpit, aft stanchions, coaming boxes, wheel steering arm boot, holding or aft water tank, etc. makes its way to the area behind the aft bulkhead, and forms a puddle next to the battery. When this puddle gets big enough, it spills over the "sill" that is at the end of the aft berth floor, where it joins the hull. This lip supports the bulkhead. When the water spills over, the plywood bulkhead and the berth get soaked.  I carefully drilled two 3/8" holes, both sides of the battery, parallel to the hull through the 1/8 “ thick fiberglass sill. (From the stern aiming forward, don’t drill downward as doing so would go through the hull).   Now the puddle drains to the bilge, where the inlet hose to the pump is. Observe with a light placed into the bilge to verify that the holes are providing drainage to the bilge.

Although it doesn't solve leaks, it does keep the berth from getting wet, and delivers the water where it does the least damage and can easily be removed, in the bilge.

This has been verified to work on the water ballast model, the WK could be different.