Suppose that, instead of using a P.D. pump in Example 10.2, we used a centrifugal pump, which for 200 gal / min had a reported NPSHR of 10 ft. What would be the maximum elevation above the sump at which we could place the pump, assuming that we have a way to prime it? The NSPHR is for the pump only, not including the friction in the lines. There is no inlet valve like that in Example 10.2.