To make 'efficient water' with the strainer plate found on all previous conventional showers was unthinkable. The solution was found in the use of a turbine-vane screw.
The water comes through the shower handle at full pressure and velocity down through the stem of the chamber and is deflected backwards into an expansion chamber. This action causes the water to be exposed to periodic and partial under and over pressure.
The action of under and over pressure takes place with a pulse frequency of 30~40 times per second, maintaining impact pressure, temperature and comfort with the least amount of water possible.