Water in bilge

I recently bought a "72 O'day Javelin that hadn't been in the water since '85. Atfter 2 weeks in a slip I found 4 or 5 inches of water in the bilge. I think it came from the ceenterboard trunk. Any suggestions as to how I can remedy the situation. Thanks, Jack Parker
Jack Parker (zeke924-at-juno.com)
Jack Parker (zeke924-at-juno.com)