Well pumps with maximum yield: an enormous saving in energy costs The Prime Tower is a visually unique landmark under construction in the heart of Zurich. The angular high-rise building stretches 126 metres across 36 floors, and is claimed to set a new benchmark for commercial properties in terms of architecture, transparency, appeal and technical perfection. In February 2008 work began on the preparation of the Prime Tower and the adjacent Cubus and Diagonal buildings. German groundwater drawdown specialists Brunnenbau Conrad GmbH were awarded the contract for lowering the groundwater for the build. The application of wastewater pumps In order to reduce the groundwater level by more than 1000 m 3 /h, a solution was developed on-site using voluminous sump pits with submersible wastewater p

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