This one was tricky even for me, not to mention my son who tried to rotate the left knob (the right one is for soap) for at least a minute before he started to complain. The tap has usual two features:
- Controlling the flow: by pulling out the little stick on the knob out
- Controlling the temperature: by turning the knob left and right
Also not clear is on which side the temperature is cold and on which hot.