Tobee™ TQW Submersible Sewage Pump is a kind of hydraulic mechanism which motor connects directly with pump. It is used for delivering liquid contained sand, coal cinder solid etc.. The pump can be mainly employed in clearing the mud in lake, river, sea and widening channel etc. it also can be applied to clear out sewage pool; in building site, steel works and power station etc. the pump adopts excellent material, advanced structure, and it is with wide flowing passage & strong delivery ability. The hydraulic parts are wear-resistant. The pump is yet completed with control unit. The pump set consists of main impeller and vice impeller two parts. The main impeller is used for absorbing and delivering solid-liquid mixture, the vice impeller is used for spraying or stirring solid-liquid mixture to help the impeller delivering