A fire hose nozzle has a diameter of \(1 \frac{1}{8} \mathrm{in}\). According to some fire codes, the nozzle must be capable of delivering at least 250 \(\mathrm{gal} / \mathrm{min}\). If the nozzle is attached to a 3-in.-diameter hose, what pressure must be maintained just upstream of the nozzle to deliver this flowrate?