The Dankoff Solar SlowPump model 1310-48 is for 48 Volts DC systems. It's maximum PSI is about 190 and the maximum suction lift is 20 feet at sea level. For every 1,000 feet of elevation, the pump loses 1 foot of suction lift. For example: If your elevation is 4,000 feet, the maximum suction lift of the pump will be 16 feet. It's always best to limit the suction lift as much as possible. By placing the pump closer to the water source, it will run more efficiently and quietly. A noisy pump can indicate that your total suction lift exceeds the pump's specifications. This pump cannot tolerate dirt. The water MUST be filtered clear. Sea water and dissolved minerals will not cause any problems. The 12V, 24V and 48V models can be powered directly with solar power.
