I want move water from a fairly fast flowing but not very deep creek that is about 300-400 feet away. I think the ram pump would be ideal, but there is no drop area as the land is very flat there. Would the pressure from the flowing water be enough to drive the pump or is the drop absolutely necessary? I am under the impression that the pump is drive by water pressure and the drop is necessary to build up pressure from a spring, pond or slow moving stream. My thought is a wide pipe, maybe 6 inches that sits on the highest and fastest flowing section, reducing down to 4, then 2 then 1, right into the pump. Then push the water over the water troughs in the pastures and a split to a holding tank for other uses. Troughs will probably drain to the pond. thoughts? Ideas?