Introduction. Many years of experience and the observations of the authors of this work in the field of production operation of energy and automation equipment of pumping stations made it possible to establish noticeable improvements to the structure of auxiliary technological processes and operations, especially in matters of protection of equipment and the production process taking place in the engine room of a pumping station from open water are possible. The efficiency of operation of pumping stations, as well as sustainable protection against the flooding of its premises, including the station's engine room, depends entirely on the reliable operation of submersible pumps that provide drainage water pumping

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