Jet Pump Systems for Cisterns
Aqua North Water Systems Ltd has jet pumps specifically designed for homes, cottages and irrigation systems. Jet pumps draw the water up from the well, cistern or dugout through suction. They create suction by spinning an impeller. The impeller moves the water from the well through a narrow jet mounted in the pump. This constriction at the jet causes the speed of the water to increase, much like a garden hose nozzle.
As the water leaves the jet, a partial vacuum is created that sucks the water from the well. Behind the jet is a venturi that slows the water down and increases pressure. Jet pumps generally need to be primed since the pump uses water to draw water. A check valve should be installed in the feed line to the pump to keep the water from draining back into the well.