I recently setup my liquid cooling system for the first time, and when i checked for leaks, the pump refused to run as quiet as it did when i first tested it. It sounds like theres air bubbles caught in the pump but theres no bubbles in the system and i cant seem to knock the bubbles out of the pump. When i run it without any fluid its near silent, when its got fluid, its louder than my fan cooled system. Anyone got any idea how i could make it quiet again?