No clogging sewage pump Open/Semi-open/Close impeller Back pull-out design Easy maintenance Long bearing life General Type ... sewage pump is characterized by high-efficiency, no clogging and back pull-out design which can allow the rotor to be ... sewage, screen water, pulp water, suger juices, etc."O" impeller: Open impellerSame applications as "N" impeller, but also including fluids containing ...