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Solar
Force Piston Pumps (Surface Pumps) are designed for drawing water
from a shallow well, spring, river or tank. It can pump water uphill
and over long distances for home, village, irrigation or livestock
uses. It can use power directly from a photovoltaic array, or from
storage batteries, to fill a storage tank or to pressurize water.
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These
centrifugal pumps are specially designed for drawing water from deep wells. They operate
automatically during the daylight hours, pumping at a rate proportional to the available
sunlight. The pump controller matches the speed of the pump to the power output of the
photovoltaic array, maximizing water delivery under varying light conditions. This insures
early morning start-up and allows operation under low light levels, which increases the
volume of water pumped per day.
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