Wilfried Klauss said that the original amount of chlorine needed could be significantly reduced in the house swimming pool. The next step was to mount a device onto the drinking well from his solar power thermal unit, so that any thirsty person can be refreshed at no charge, of course. Wilfried Klauss said: "For me, revitalised water is a message to humanity!"

The Bergland Hotel in Seefeld is among the pioneers who implemented GRANDER technology in the hotel industry. Their first equipment was installed nine years ago.