The natural water cycle is well known: from the sea, through clouds and rain, back to the sea. But what path does water take before it flows out of the tap in our homes? What technical aids are needed for this? In this go tec! course, which is being held in collaboration with Georg Fischer (GF), we will immerse ourselves in the fascinating world of pipes, valves and pumps. Using VR glasses, we will experience how real fittings are assembled in virtual space. Together, we will build water systems with pipes and valves, look at how a tap works and try everything out for ourselves.