A single pump injection skid takes one metering pump, a day tank, and the piping, valves, and instrumentation needed to deliver chemical at a controlled rate, and mounts the entire system on a single structural base. This is the configuration most commonly specified where a facility needs to dose one chemical at one injection point, a corrosion inhibitor on a pipeline, a coagulant at a water treatment intake, without the added complexity or cost of a multi-stream system. Because everything arrives on one frame, pre-piped and pre-wired, installation is reduced to setting the skid in place, connecting process and power tie-ins, and running startup checks.