An Air manometer is connected to each side of an orifice, with a diameter of 8 inches, in a pipe with a diamter of 12 inches. If a maximum flow rate is 5 ft^3/s, what is the deflection of the manometer? The viscosity of the water is 0.000674 lbm/ft*s, and its denisty is 62.3 lbm/ft^3.