A medical device processor comprising: (a) an enclosure for holding at least one medical device (200, 400), wherein the at least one medical device (200, 400) comprises an outer surface and at least one internal channel (210, 420); (b) a first reservoir (360, 411), wherein the first reservoir (360, 411) includes a disinfectant contained therein; (c) a water source;; (d) a mixing chamber in fluid communication with the water source; (e) a liquid distribution system in fluid communication with the first reservoir (360, 411) and configured to deliver the disinfectant from the first reservoir (360, 411) to the at least one medical device (200, 400), wherein the liquid distribution system is in fluid communication with the water source and is configured to deliver the water from the water source to the mixing chamber, the liquid distribution system comprising: (i) a pump (312, 412), wherein the pump (312, 412) is operable to deliver the disinfectant from the first reservoir (360, 411) to the at least one internal channel (210, 420) of the at least one medical device (200, 400), and (ii) a flow sensor, wherein the flow sensor is operable to monitor the disinfectant delivered by the pump (312, 412) to the at least one internal channel (210, 420) of the at least one medical device (200, 400); and (f) a control system including one or more microcontrollers for controlling decontamination and user interface operations, characterised in that: the liquid distribution system is further configured to release the disinfectant from the at least one internal channel (210, 420) into the mixing chamber to mix with water from the water source to thereby disinfect the outer surface of the at least one medical device, the disinfectant contained within the first reservoir (360, 411) is a concentrated disinfectant, and the liquid distribution system is configured to deliver the concentrated disinfectant to the at least one internal channel (210, 420) while preventing the outer surface from being exposed to the concentrated disinfectant. (a) an enclosure for holding at least one medical device (200, 400), wherein the at least one medical device (200, 400) comprises an outer surface and at least one internal channel (210, 420); (b) a first reservoir (360, 411), wherein the first reservoir (360, 411) includes a disinfectant contained therein; (c) a water source;; (d) a mixing chamber in fluid communication with the water source; (e) a liquid distribution system in fluid communication with the first reservoir (360, 411) and configured to deliver the disinfectant from the first reservoir (360, 411) to the at least one medical device (200, 400), wherein the liquid distribution system is in fluid communication with the water source and is configured to deliver the water from the water source to the mixing chamber, the liquid distribution system comprising: (i) a pump (312, 412), wherein the pump (312, 412) is operable to deliver the disinfectant from the first reservoir (360, 411) to the at least one internal channel (210, 420) of the at least one medical device (200, 400), and (ii) a flow sensor, wherein the flow sensor is operable to monitor the disinfectant delivered by the pump (312, 412) to the at least one internal channel (210, 420) of the at least one medical device (200, 400); and (i) a pump (312, 412), wherein the pump (312, 412) is operable to deliver the disinfectant from the first reservoir (360, 411) to the at least one internal channel (210, 420) of the at least one medical device (200, 400), and (ii) a flow sensor, wherein the flow sensor is operable to monitor the disinfectant delivered by the pump (312, 412) to the at least one internal channel (210, 420) of the at least one medical device (200, 400); and (f) a control system including one or more microcontrollers for controlling decontamination and user interface operations, the liquid distribution system is further configured to release the disinfectant from the at least one internal channel (210, 420) into the mixing chamber to mix with water from the water source to thereby disinfect the outer surface of the at least one medical device, the disinfectant contained within the first reservoir (360, 411) is a concentrated disinfectant, and the liquid distribution system is configured to deliver the concentrated disinfectant to the at least one internal channel (210, 420) while preventing the outer surface from being exposed to the concentrated disinfectant.