TOPIC: Pontoon boat fuel tank capacaity?? Crest

Hey, we have a 1998 Crest 22' pontoon we just bought and I am wondering if anyone here has one or has a pontton with the same gas tank setup. This one has the wedge shaped tank that fits inside the aluminum motor mount/well (which also acts as a 3rd sponson). I've added a pic of the motor mount setup like we have since I don't have an actual pic of mine right now. Anyway, I am trying to figure out the capacity of this tank. Anyone out there with a pontoon have this setup and know the capacity? I've searched and searched and cannot find any specs on a tank like this. Thanks

Doug

25 gallons comes to mind on the 06 & 07 Crests I sold.

Thanks Jim,
That's about what I was figuring it would be. What size engine did you have on yours? Wonder what type of milage we might get out of this thing with a 120 Force at about a 15mph cruising speed.... We are planning on a river trip at the end of the month so I guess I need to fill up a 6 gallon tank and run till it runs dry to get an idea. I imagine this thing will burn a bit more than my 35 on my Lonestar Lummie. lol

Doug