Can any of you knowledgeable folks know the layout of the tanks aft under the stateroom. Fiberglass cylindrical tanks that look to be 100 gals give or take. I have 4-100 gal water tanks in my rudder room aft. These under the stateroomlook as though they were water but I don't know. Does anyone have any layouts showing tankage location or any drawings of the vessel that show the various layouts available at the time they were built. A set of shop drawings would be worth their weight in gold.