A 1 kW pump with 100% motor efficiency generates a flow of 1.6 L s-1, from a point (1) to another point (2) which is 80 m away and at a height of 32 m. A second pump generates the same flow, also to a point (3) which is 80 m away, but at the same height as point (1). A second pump generates the same flow, also to a point (3) which is 80 m away, but at the same height as point (1). What power does the second pump need to satisfy the same flow as the first pump?