Properties of water at temperature= 30 C: viscosity = 1.0710-3 kg/ms, density = 1025 kg/m3 , vapour pressure = 4.17 kPa.

If the pump is operated at the best efficiency point (i.e., discharge rate =0.03m3/s, efficiency =72%, pump head developed is H=8.5m ), the NPSH required is 5m, and the pipe friction loss can be simply assumed to be 10m per 100m of the pipe: (d) where will the pump need to be placed relative to the sump (find Hupper - the upper limit position above the sump surface and Hlower the lower limit position below the sump surface)