The most economical rain water system in the world

On average, the INTEWA RAINMASTER Eco effectively saves more than 75 % power.

Several systems were analyzed within the scope of an fbr Fachvereinigung Betriebs- und Regenwassernutzung e.V. [fbr] – approved investigation on the power consumption of rainwater systems. If all the rainwater systems in Germany were equipped with the INTEWA RAINMASTER Eco instead of existing pumps almost 100 GWh of power per year could be saved.

INTEWA has come to a new, smart way with the RAINMASTER Eco. Its new diaphragm  pump technology stands it apart from convention centrifugal pumps which are power-hungry at approximately 900 Watts power input. While  toilet flushing requires as little as 5 l/min for tank filling, the centrifugal pump  delivers 80 l/min , total over-kill and a waste of  90 % of the pumps power. In contrast, the performance of the RAINMASTER Eco Diaphragm pump is perfectly designed for typical household use delivering a power saving 10 l/min,  more than enough for basic household requirements. In  principle, the diaphragm pump resembles the human heart: An elastic diaphragm is moved by an eccentric tappet. It draws liquid in on the downward stroke via the inlet valve. Simutaneously, the diaphragm forces the water out of the pump head via the outlet valve. It is used both in small applications (such as with nozzle systems) as well as in large-scale technology (such as the food and pharmaceutical industries). Diaphragm pumps ensure a wear-free operation and a safe shielding between the drive system and the pumping medium.