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Hi Jim, Theres a couple of ways to set up this system that works well. I would not direct pump out of the creek. I would dig a hole about 2ft away down to the water level or deeper, the deeper the better, add perferated a bore pipe, fill the outside hole with small rocks, then pump out of the bore. This helps keep all trash out of the pump plus will filter the water quality to near drinking water standards if covered. Covered is out of sight, out of mind. You can get a Flojet 12vdc pump, 5gpm@40psi, about 10/lbs, cost about $105, and use a lawn & garden battery to power the pump. The battery is small light weight that can be carried easy and will pump about 100gals before needing recharged,(I use this method alot while boondock camping using a solar charger). Or you can use a 12v 105amp/hr deepcycle battery that will pump about 10hrs before needing recharged. A 2amp 115v charger, about $20, will recharge the deepcycle battery in approx 25hrs. If you need longer battery pumping time then you can add another 12v deepcycle battery in parralel. Do not use a Surflo 12v pump as they are now cheap made and won't last very long. At the cost of gasoline, a 12v pump would be more cost effective at this time. Add a small 50w PV solar panel and it would really be cheaper overall. You can then use a 115/230vac pump to pressure feed off your cistern tank. You'll need to calculate your pump volume(gpm) requirement based upon your supply volume(cistern size in gallons) and your desired flow rate(total nozzle volume(gpm) demand). Piping size is calculated on the volume, pressure and distance required at the point of use. This is really important at distances over 500ft. Use a pressure control to control the pump on/off to refill the stock tank. Add a float valve, a toilet tank valve works well, to shut off the water and that builds pressure to the pump/piping thus shuts off the pump when full. The 12v pump has/can have a built in pressure switch, no extra cost. A good formula to remember: LxWxH=ci/231=gallons or radius squared X 3.1416 X length=ci/231=gallons T_Bone
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