I need some help determining the true capacity of my pool. I have a Sharkline Navigator 54 12ft by 17ft x 54in oval above ground pool. My pool dealer tells me the capacity is approximately 7000 gal when the water is raised to 50 inches (I dont really trust this number). I have seen other dealer websites list it as 6400 gal. When I use online calculators for oval pool or use the length x width x height x 5.9 method I get about 5000 gal. I have called and emailed the manufacturer and am awaiting a response ( I am not holding my breath). In the meantime would anyone know the true capacity of this pool?