Automatic flush actuation apparatus

An automatic actuation apparatus for controlling volume of water used in a flushing cycle of a flushing system, comprising a control processor, an actuator having two opposed first and second contacting surfaces controlled by said control processor in a rotatably movable manner, and a relief valve having a valve stopper actuated by said control processor, said control processor performing flushing operations of:

• detecting a presence of a user of said flushing system;
• activating said control processor to adjustably control a time of said flushing cycle and water volume for said flushing cycle by moving said relief valve from a closed position to an opened position via a rotational movement of said actuator by a step of rotating said actuator from said first contacting surface to said second contacting surface that when said second contacting surface of said actuator contacts said valve stopper, said relief valve is moved at said opened position;
• starting said flushing cycle of said flushing system;
• and
• completing said flushing cycle of said flushing system in responsive to said time of said flushing cycle and said water volume for said flushing cycle when said actuator is rotated back to contact said first contacting surface with said valve stopper so as to move said relief valve back to said closed position.