>>The owners manual says I have an 18.5 Gallon tank; but every time I fill >>up, I get about 14 and a half gallons. Anyone know what to do or have >>heard of this? I think it's 16.5 with the Ski-sack cut-out..got one? I got 17.5 in my 16.5 gallon tank yesterday though...I guess it was little low :-) Paul "Uncle Sam" Royal