Hydroman Submersible Axial and Mixed Flow Sewage Pump Description: Hydroman Submersible axial and Mixed Flow Sewage Pump is specifically designed to pick up and transport abrasive materials with the least amount of water. The design incorporates the patented Tobee' s agitator, attached directly to the pump shaft, which together with the closed impeller or open impeller, large open passages for the easy passage of solids, heavy duty shaft/bearing configuration and custom built motor with 1.35 service factor, result in the most rugged submersible slurry pump on the market today. In applications where solids are especially difficult to pump, or simply where more agitation is required, Hydroman offers a special high pressure jet ring. This combination of jet ring and agitator have proven to be a truly effective 'agitation team', together pumping solid concentrations of up to 70% by weight.