Slickline is pumper terminology for the welded or seamless tubing connected to provide a vertical or horizontal pumping system. Slickline systems are frequently rated by working pressure and ultimate or burst pressure. Couplers, bends and elbows, and reducers are needed to connect pipe section, change direction and pipe diameters. Valves stop, divert or discharge the concrete. A rubber hose at the end of the line is flexible enabling exact placement of the concrete.