Providing flush pumps with flow control A case study from EmotronThe flush pump system at the Lith drinking water production plant, a division of Brabant Water, recently underwent an overhaul. This system comprises two 55 kW centrifugal pumps driven by electric motors. They produce a combined output of 0 – 2000 m3/hour. Flush pumps are used to rinse filter beds clean. In fact, here is a brief description of what the whole process involves. Groundwater is pumped through a number of well fields and collected in a pair of pipes. The water is then channelled to the filter station. Groundwater is rich in dissolved iron and manganese. The first stage of the pu- rification process involves groundwater being intensively exposed to air. As a result of this, the dissolved metals are conve

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