After reading the above comments I decided to yank out my fuel tank for two reasons, to see how much it holds and check for corrosion. ( PC 34 # 286, almost 20 years old)the tank holds 32 gallons and had minor corrosion behind the screws that secure the tabs to the hull. The bottom and sides of the tank had a gray sort of non skid coating of some kind which was peeling on the bottom of the tank. The bare parts were stained by bilge but not corroded. The hull already had a half pipe insert to keep the tank from sagging onto the keel bolts. I plan to get it pellet blasted and coated with truck bed liner. The tank was very easy to remove and lug out of the boat.