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Old 07-05-2018, 09:51 AM
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pmkkdx pmkkdx is offline
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Join Date: May 2009
Boat: Mastercraft, X2, 2004, Violet (purple) & white ... previous 1983 black/silver stars
Location: Southwest (Central Texas)
Posts: 2,355
I have similar and usually flush out with a water hose. I suspect its some kind of moss, algae or bacterial growth from having a damp bilge
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