In the Kick and Drop (KD) electronics, the coil is initially overexcited by a high voltage pulse to generate the high starting power required to open the valve. After a few milliseconds, the electronics switch to an energy-saving holding power, thus drastically reducing power consumption. Thanks to the low power consumption, the max. self-heating of the valve is lower, which minimises the build-up of deposits and calcification and substantially extends the valve’s service life. Unlike the control units with pulse-width modulation (PWM) that are normally used, KD electronics do not emit noises that are disturbing to humans and animals.