A reagent manager for a diagnostic analyzer system comprising: a reagent manager housing comprising a reagent cartridge for holding a reagent bottle, the reagent cartridge comprising a dispersion gear for snapping to the reagent bottle, wherein the reagent bottle comprises a septum, the reagent bottle further having disposed therein liquid and microparticles which may have accumulated to a bottom surface of the septum; a high-speed reagent bottle spinning device disposed within a storage area of the reagent manager housing configured to spin the dispersion gear (38, 38a-38d) attached to the reagent cartridge to spin in turn the reagent bottle (30a-30d) held by the reagent cartridge; a plurality of gears driven by a belt disposed within an operating area of the reagent manager housing to spin the dispersion gear (38, 38a-38d); a robot configured to transfer the reagent cartridge holding the reagent bottle (30a-30d) between the storage area and the operating area of the reagent manager housing; a processor in electronic communication with the high-speed reagent bottle spinning device; and a memory in electronic communication with the processor, wherein the memory comprises programming code configured to be executed by the processor, and the programming code is configured to: spin the high-speed reagent bottle spinning device to spin the dispersion gear (38, 38a-38b) to spin the reagent bottle (30a-30b) at a first speed in a plurality of forward and backward cycles to cause the liquid disposed within the reagent bottle to contact and remove microparticles from the bottom surface of the septum of the reagent bottle, wherein a cycle is defined as each time the high-speed reagent bottle spinning device goes in one direction; transfer the reagent cartridge holding the reagent bottle (30a, 30b) by the robot between the storage area and the operating area of the reagent manager housing; and subsequently drive the plurality of gears to spin the dispersion gear to spin the reagent bottle at a second speed, lower than the first speed, to provide a uniform flow of the liquid within the reagent bottle. a reagent manager housing comprising a reagent cartridge for holding a reagent bottle, the reagent cartridge comprising a dispersion gear for snapping to the reagent bottle, wherein the reagent bottle comprises a septum, the reagent bottle further having disposed therein liquid and microparticles which may have accumulated to a bottom surface of the septum; a high-speed reagent bottle spinning device disposed within a storage area of the reagent manager housing configured to spin the dispersion gear (38, 38a-38d) attached to the reagent cartridge to spin in turn the reagent bottle (30a-30d) held by the reagent cartridge; a plurality of gears driven by a belt disposed within an operating area of the reagent manager housing to spin the dispersion gear (38, 38a-38d); a robot configured to transfer the reagent cartridge holding the reagent bottle (30a-30d) between the storage area and the operating area of the reagent manager housing; a processor in electronic communication with the high-speed reagent bottle spinning device; and a memory in electronic communication with the processor, wherein the memory comprises programming code configured to be executed by the processor, and the programming code is configured to: spin the high-speed reagent bottle spinning device to spin the dispersion gear (38, 38a-38b) to spin the reagent bottle (30a-30b) at a first speed in a plurality of forward and backward cycles to cause the liquid disposed within the reagent bottle to contact and remove microparticles from the bottom surface of the septum of the reagent bottle, wherein a cycle is defined as each time the high-speed reagent bottle spinning device goes in one direction; transfer the reagent cartridge holding the reagent bottle (30a, 30b) by the robot between the storage area and the operating area of the reagent manager housing; and subsequently drive the plurality of gears to spin the dispersion gear to spin the reagent bottle at a second speed, lower than the first speed, to provide a uniform flow of the liquid within the reagent bottle. spin the high-speed reagent bottle spinning device to spin the dispersion gear (38, 38a-38b) to spin the reagent bottle (30a-30b) at a first speed in a plurality of forward and backward cycles to cause the liquid disposed within the reagent bottle to contact and remove microparticles from the bottom surface of the septum of the reagent bottle, wherein a cycle is defined as each time the high-speed reagent bottle spinning device goes in one direction; transfer the reagent cartridge holding the reagent bottle (30a, 30b) by the robot between the storage area and the operating area of the reagent manager housing; and subsequently drive the plurality of gears to spin the dispersion gear to spin the reagent bottle at a second speed, lower than the first speed, to provide a uniform flow of the liquid within the reagent bottle.