The passive change-over valve redirects water into a special retainer before it reaches its optimum temperature.
Before getting in the shower a lot of people open the tap, because they sometimes have to wait for the water to get hot. Seeing all this drinking water going to waste was a big concern for the 17-year-old Jure Miklavčič. So he decided to do something about it: he created a passive change-over valve that amazed numerous experts and got him several awards.
The valve is installed into the showering system, its essential role being that it redirects the water into a retainer before it reaches 35 degrees Celsius (this water can later be used to flush toilets, wash laundry, dishes, water plants etc.). Only when the desired temperature is reached does water begin to flow from the shower head.
Interesting fact: in a household with 4 family members 50 liters of water is lost this way on a daily basis. Make the calculation yourself and you will see how much money you save. The valve should cost around 100 euro.