The Spiralift SL fine screens, washes, transports and compacts wastewater solids while leaving essential organics in the flow. The easy-to-install, fully integrated system includes a Taskmaster7 grinder, a shaftless screw screen and a PLC-based control system that coordinates the system=s normal and special functions and uses flow level data to cycle the screw to minimize power and wear. Units feature electric or hydraulic drives and a variety of channel widths and flow and lift requirements. Special options include a bagging system, heat tracing or ultra-sonic level sensors.