The Immersion Circulator may be clamped directly to the side of a reservoir (user supplied) or to a support rod adjacent to the reservoir. To produce the best fluid circulation, the rotating pump outlet nozzle should be pointed along one side of the reservoir wall. The liquid in the reservoir should be maintained at a depth sufficient to fully immerse the heater coils, over-temperature sensor, and pump outlet nozzle. When using a plastic reservoir, be sure to position the Circulator so that the heater coils do not contact the sides or bottom of the tank.