The HS-series is a submersible single-phase portable dewatering and drainage pump. Wear parts are manufactured from abrasion-resistant materials. The side discharge, spiral design allows smoother passage of the en-trained solids. A shaft-mounted agitator prevents “Air Lock” which tends to occur with vortex or semi-vortex pumps. The agitator also assists to keep the solids in suspension so they can be pumped.