A system and method for dispensing a liquid product from a mobile machine includes opening and closing a plurality of valves of a plumbing circuit, the plumbing circuit having a first fluid circuit and a second fluid circuit. Under influence of a pressurized gas, a flow of liquid product flows through plumbing of the first fluid circuit that has a temporarily inactive centrifugal pump and a flow of liquid product through plumbing of the second fluid circuit that has a boom plumbing assembly with plural nozzles coupled to the boom plumbing assembly. The flow of the liquid product through the first and second fluid circuits is controlled by the opening and closing of the plurality of valves and dispensing the liquid product of the first and second fluid circuits to either a product tank or through the plurality of nozzles based on the flows through the first and second fluid circuits.