Not removable without cutting the deck. Grady did that when they switched to the plastic fuel tanks in 1997 or so. My boat is a 1995 model year, which originally had an aluminum tank and a deck hatch to gain access to it. When the hull was replaced under warranty in 1998, it came back with a plastic tank and solid deck with access ports for the fuel fill/vent and sending unit. The good news is the plastic tank should last the life of the boat, so you shouldn't ever have to cut...