16 x 33 oval (?)

=> ((8^2)*pi* + 17 * 16) * 2.7 * 7.48 = shallow volume => 9,500 gallons
=> ((8^2)*pi* + 17 * 16)/2 * (9.7-2.7)/2 * 7.48 = deep volume => 6,200 gallons (assumes break at 1/2 length of pool)

Total estimated volume ~ 15,700 gallons. PF:7.5

A Perflex EC65 *is* big enough for a 15.7K gallon pool.