60°water tap / Design of anti inertia

Since modern people have used taps for several decades, the living habits and using approaches are accustomed to a 90° module. For instance, the 0° is the maximum of switching on, and the 90° means switching off.
Nowadays, the outlook of pushing to the 90° then means switching off is becoming a habit, which definitely leads to a problem that a great amount of users can hardly ensure that they have tightly switched the tap off when they are hurried.It truly causes a dilemma especially in the situation of lacking water resource.
therefore,if we use this habitual thinking of people, the design of 60° tap is the appropiate and efficient solution.