Grundfos Water Pumping Kit - 600 Gallons Per Day 600 FT This system will supply approximately 600 gallons of water per day at 600 feet given 5.5 hours of sun per day. This system runs PV direct (only when the sun is shinning). It assumes that the water will be strored in a tank for night time use (tank float switch). The array is oversized and will work in more marginal environments. The CU 200 provides all of the diagnostic abilities available for a Grundfos pump. Use #10 AWG wire for runs up to 650'