An apparatus for reprocessing a medical device having a first device channel and a second device channel, the apparatus comprising: (a) a decontamination basin configured to receive the medical device therein; (b) a first flush conduit and a second flush conduit, wherein the first flush conduit has a first coupling port configured to fluidly connect to the first device channel, wherein the second flush conduit has a second coupling port configured to fluidly connect to the second device channel, wherein the first and second flush conduits extend into the decontamination basin such that the first and second coupling ports are configured to be positioned within the decontamination basin; (c) a manifold fluidly connected to the first and second flush conduits, wherein the manifold is configured to distribute the fluid received therein to each of the first and second flush conduits; (d) a primary pump fluidly connected to the manifold and configured to discharge a fluid into the manifold at a predetermined supply flow rate; characterised by: (e) a first variable valve (314, 316, 318, 320) positioned in the first flush conduit in fluid communication with the first coupling port and a second variable valve (314, 316, 318, 320) in the second flush conduit in fluid communication with the second coupling port, wherein the first and second valves (314, 316) are configured to balance the fluid introduced into the manifold by the primary pump at the predetermined supply flow rate such that the fluid discharges from the first and second coupling ports at a first predetermined conduit flow rate and a second predetermined conduit flow rate, respectively, for flushing the first and second device channels during reprocessing of the medical device. (a) a decontamination basin configured to receive the medical device therein; (b) a first flush conduit and a second flush conduit, wherein the first flush conduit has a first coupling port configured to fluidly connect to the first device channel, wherein the second flush conduit has a second coupling port configured to fluidly connect to the second device channel, wherein the first and second flush conduits extend into the decontamination basin such that the first and second coupling ports are configured to be positioned within the decontamination basin; (c) a manifold fluidly connected to the first and second flush conduits, wherein the manifold is configured to distribute the fluid received therein to each of the first and second flush conduits; (d) a primary pump fluidly connected to the manifold and configured to discharge a fluid into the manifold at a predetermined supply flow rate; characterised by: (e) a first variable valve (314, 316, 318, 320) positioned in the first flush conduit in fluid communication with the first coupling port and a second variable valve (314, 316, 318, 320) in the second flush conduit in fluid communication with the second coupling port, wherein the first and second valves (314, 316) are configured to balance the fluid introduced into the manifold by the primary pump at the predetermined supply flow rate such that the fluid discharges from the first and second coupling ports at a first predetermined conduit flow rate and a second predetermined conduit flow rate, respectively, for flushing the first and second device channels during reprocessing of the medical device.