I have a 1967' hydro swift boat 19' with 1967' Johnson 100 HP outboard motor. last weekend was my first run. I had four people in the boat (650#) and was unable to plane. My motor is warn and I'm sure that doesn't help. But when we are in the boat it sits so low that the splash bin on the stern is barely 1" above the water. There is hole that I'm assuming is supposed to be a drain to let water out as it comes in? The drain hole is actually below the water when the boat is not moving. Is this a drain hole? Is it normal to sit this low? After removing the carpet from the boat I did find about a 4' stress crack in the floor and there are some old screw holes from were the old gas tank was installed. I'm sure water has been getting in there for years. I thought about installing a new drain and plug to drain the space below the floor, but I'm wondering if that would be waste if the foam and everything has already been getting wet for years that its just water logged more than likely I will probably have to cut the floor out and re-foam. I've repaired a couple small fishing boats with the 2 part foam, but I've never attempted a project this big. Does anyone know how this boat is laid out as far as floor support and what not. Any advise on removing and reinstalling the floor? thanks in advance