Methods and apparatus enable monitoring a hydrocarbon well for water within a flow stream of the well. The apparatus utilizes a post-cache architecture that has a decompression engine that decompresses compressed object code instructions using dictionary look-up tables, branching instruction controllers and mathematical derivations based on bit toggling. The opposite ends of the ducts are connected to a bracket mounted on the refrigeration unit frame and are exposed to the outside fresh air through a hole in the refrigeration unit’s grille when the cover over the ducts has been opened by the linear solenoid under the control of the microprocessor. A releasable handle is provided at the distal end of the pole to securely retain the paper towel roll on the vertical pole.