Effective only at low liftsVolume is greatly reduced at suction lift over 15 ft.Maximum suction lifts only 25 to 30 ft.
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Submersible pump is not affected by suction lift limitationsGenerator must run at constant full speed at all timesFuel usage is high regardless of demand on pumpMay be unsafe to operate in certain areasPotential shock hazardCostly to repair
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Submersible pump is not affected by suction lift limitationsPump speed can be varied to suit job conditionsHigh overall efficiency and low fuel consumptionCan be used in hazardous environmentsMany different pumps can be driven from a single power unitPump and power unit is field serviceableEasy and inexpensive to maintain
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