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					Originally Posted by Destroyer  Yes, a 1990 has foam flotation built in.  That foam, over several years time actually absorbs and holds water.  Since the water is in the foam it's usually not noticeable until you start poking it with a stick or some tool.  Water weights over 8 lbs a gal.  When I removed the foam from my 1996 V21 I filled (2) 55 gal drums with it, and all of it was saturated.  If you have a leak on one side and the foam is saturated on that side it could very easily cause a list.  (Just something more to look at)    | 
	
 Thanks. 
Will definitely look into that for sure. How would I access the foam? The only access points that I have are to the rear of the boat on the starboard hatch where the battery is stored.  Also if it were the foam would that be noticeable suddenly. Last year it appeared that the listing started quite quickly after a couple of months and the boat seems to list less once I have it going on plane and cruising for an hour or so. On the flip side, I think this is the first time the boat has been in a slip on the water for the season.  Would that be enough time for the foam to saturate?