該水泵總揚(yáng)程為:H=100×6.02+6.2+18.8=627m
排水高度=總揚(yáng)程-吸水揚(yáng)程-管阻損失=620-6.5-17=596.5m
水泵的揚(yáng)程為:H=1.25×(720+5.5)=906.875m