Alan
I removed the old screwed down sealed battery hatch and and made a new one that was hinged.
Then I used PVC pipe cut in half and glassed to the underside of opening edges to form a
"Gutter System"
I put PVC pipe drain tubes in the aft corners (you can see the holes in the above picture) and tied them into the self bail drains (below picture) that 90* out the transom. Works fine [img]/images/graemlins/wink.gif[/img]