Turbine drives use the pressurized water flowing through the reel to power the retraction. Speed is controlled by diverting more or less water through the turbine, wasting no water in the process with less than 10 psi of pressure loss. There are minimum flow requirements for the turbines to operate for each model.
The bellows drive is used on two models, the B110 and B140, and is an inexpensive option that does not create additional pressure loss. The water flow is used to fill a bellows that rotates the reel. When it reaches maximum expansion, the water in the bellows is expelled, and the bellows is compressed by a spring ready to expand again and rotate the reel another time.
The engine drive uses a reel-mounted gasoline engine to power the retraction. This is advantageous for low flow, harsh water, and hard pull applications. Engine drives can be built to move fast for light applications (800fph) or slow for heavy application (35 fph).
The electric drive system is available on models E110 & E140 and features a small reel-mounted, battery-operated DC motor (battery not included) which powers the reel rotation. A solar panel kit is available to trickle charge the battery, making it a truly environmentally green system.