Experience: It is daruf out that a water pressure of 6 bar must not be exceeded. What is lacking - and I did not think that it could be necessary - is an indication daruf that minimum pressure is required to redeem the expansion promises. I live in a village in Schleswig-Holstein and has for many years no problem, even for working in the garden (Sprenger etc.), with the local water pressure.
So tap closed on the connection part before the hand shower after statement to initially build pressure ..
Now it was found that the Druckbei us is not sufficient to significantly extend the hose, that is in order to overcome the return force of the tube. After opening the faucet was blowing up from the site reached, like a convention tional tube, almost no problem. For since the pressure in the hose after opening fell automatically to the existing pressure with us, because the front was now no obstacle (closed valve) longer exists, the amazing return force showed. One has to require some force to compensate them ..
It is a pity. Good Parts, amazingly small footprint, light weight. I ordered the hose to my (Green Thumb) woman to spare the heavy conventional hose. I have sent him back.