Abstract: A method for the reprocessing of a device having a plurality of internal passageways by applying a plurality of fluid channel flows to the internal passageways of the device to permit reuse of the device in a clean environment, including providing a manifold having an input of the manifold and a plurality of manifold outputs for forming a plurality of manifold output channel flows; applying a pressurized fluid flow to the input of the manifold thereby forming a plurality of manifold output channel flows; transmitting the output channel flows through respective flow-determining sensors for determining an individual flow rate for each of the output channel flows; transmitting the output channel flows to the plurality of internal passageways; reprocessing the internal passageways using the output channel flows; and determining an obstruction in an internal passageway of the plurality of internal passageways in accordance with the determined individual flow rate.