METHOD FOR PUMPING OUT DRAIN WATER FROM PREMISES OF SEWAGE PUMPING STATION

摘要

A method for pumping out drain waters from premises of sewage pumping station through supply of drainage water by troughs to drainage pit. One connects the drainage pit by means of drain pipelines to shutoff device and suction pipelines of respective operative pump. And with collection of drainage waters in the pit one periodically opens shutoff device for suction of drainage water collected in drainage pit and together with pumped liquid one supplies those liquids with operative pumps to sewage purification plants.