I'm a newbie! and just got a porpoise II sailboat that had water in the hull.. After opening up the drain plug and the inspection port I have found that there is a foam block on only one side of the aft that is soaked with water and a loose foam block under the bow that I guess is also saturated with water by the weight shift I can feel when moving the hull around. And help with what I should do? I'm trying to dry it out but should I remove the OLD blocks? and if I do how can I replace flotation without opening up the hull? Any and all help will be appreciated.