If it were my boat, I would spend a few bucks for a knowledgeable diver to check it out under the hull. The word "knowledgeable" should be underlined there. Anyone can put on a scuba tank and go down, but you need someone who can look at it and give you an educated opinion. Going to cost more than a run of the mill diver, but cheap at the price. Far less than a boat dollar, more than likely.
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John
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