Does anyone know how the nylon drain plug just aft of the centerboard truck is SUPPOSED to function? Is it designed to drain ONLY the cockpit?Is the transom drain designed to drain ONLY to space between the hull and the cockpit sole?In my "new" 1972 Widgeon I found pieces of a silicone "plug" below the nylon drain plug. When removed, there is a clear opening completely through the hull that obviously drains water from the cockpit. However, water continued to drain out for quite some time after the cockpit was dry -- presumably coming from the inside of the hull. The nylon plug doesn't appear long enough to keep water from entering that space once the boat is launched.Any information about how things are supposed to work will be very much appreciated.Thanks.D Jones