Careful about draining anything to the bilge. Once saw a sunken 26-footer that got that way because the owner thought it good to drain the cockpit into the bilge. Duh.
If you have a self-bailing cockpit, maybe you can drain the lockers to a T fitting at the cockpit drains.
Paul Van Voorhees
Certified Tohatsu TLDI Technician
Mgr, Obersheimer Sails
Buffalo, NY USA