Deep Well Dewatering System

Deep well dewatering systems allow for significant lowering of the groundwater table. These systems typically involve installing a submersible pump at the bottom of a well, with the casing usually having a minimum diameter of 150mm. The discharge pipes from multiple adjacent wells are connected to a common delivery main. Water is then lifted from the wells by a multi-staged pump, such as the GEHO type SP, which can generate high heads corresponding to the depth of the well.

The GEHO type SP submersible unit combines a multi-stage, self-lubricated turbine pump with a mechanically sealed, water-filled submersible motor. This series is capable of handling capacities of up to 160 m³/h against a head of 260 meters.