Can the GARDENA Garden Pumps be throttled and regulated on the motor side or in terms of performance?

These pumps all feature a capacitor motor. The speed/motor performance of the capacitor motors cannot be controlled. Using special electrical controls such as frequency converters, dimmers, won’t help either. If the speed were to be changed, the motor would be consuming a different level of current and thus would no longer start or would become very hot within a short period of time, running the risk of damage. For the same reasons, we cannot recommend operating GARDENA pumps on a solar energy system. General information on GARDENA pumps