Abstract: A field marking system includes a marking solution storage tank, a mixing volume fluidly connected to the storage tank and configured to mix marking solution from the storage tank with pressurized air, a nozzle fluidly connected to the mixing volume and an engine including a turbocharger. The turbocharger supplies pressurized air to at least one of the solution storage tank and the mixing volume. In one exemplary embodiment, the turbocharger supplies pressurized air to both the solution storage tank and the mixing volume. The marking system additionally includes a valve connected between the solution storage tank and the mixing volume and a control circuit coupled to the valve. In one exemplary embodiment, the control circuit generates a control signal such as the valve modulates based upon the control signal to vary production of marking medium.