Hi to all: I have decided that I am tired of bailing out my 1966, DS I, after every rain, even though they have been few and far between lately. I want to place the drain on the stern, so that while the boat is in dry dock, I can have it sitting on the stern with the drain open. My question is, what type of drain plug should I purchase and what to use to seal it? I do not wish to balance the boat and use the drain that is behind the centerboard trunk. Too much water gets into the bow floatation tank. Fair winds to all !!! Gary 1966 DSI,#3235 "Dancing Girls II"