[jergofish]

Putershark, I think I understand where the "inner hull" area is now, it's that foot of area from the transom to where access to the bilge pump is. why not drill the drain hole on the inside of the boat so that the water from the inner hull drains into the bilge and then is pumped overboard by the bilge pump. Couldn't you just leave the holes open then and in fact, make them good sized at that so that the water drains easily, say a one inch hole both on the port and starboard sides, maybe even put a vent hole up higher on each side to allow air in as water drains out.

From the few washdowns I've done of my boat it seems that the bilge pump is pretty effective in removing almost all the water in the bilge and I have less than an inch when the pump kicks off.

I presume that any other leaks into the foam bunks that run fore and aft eventually drains to the stern and to that area where the drains are?