I recently purchased a 2006 Lowe Sea Nymph V from a private party. It's a 14' fishing boat, model 1467WT. Under one of the half bench seats is what the former owner described as an "ice chest". It's an all metal compartment with a drain hole at the bottom. There's no plug for the drain. This drain apparently connects to a hose that travels to the rear oif the boat and ends up on the left side of the transom. There's no plug for this fitting as well. He only took the boat out once and said he never worried about it. My question is: What is this compartment for? And does it need to be plugged when on the water? How can water NOT enter the opening at the transom, then travel up the hose to the ice chest, then fill the ice chest compartment and eventually swamp the boat? Thanks for any help!