Manual ON and Auto OFF Switch Design

I need a Circuit Schematic Diagram for a Simple Sensor Switch.

Operation modes:

– The Circuit will be turned on Manually.

– The Circuit will have 230V Input from Wall Plug.

– The Circuit will give 230 V Output to a Water Pump.

– The Circuit will have 1 or 2 open wires connected to it (Depending on your design), and the open end of these wires will be placed in the overhead water tank at a required level.

– These wires will act as a sensor, when the tank is filled and water touches the open end of these wires the Circuit should cut off the output power to the WATER PUMP

– The 230V Output to the WATER PUMP will not turn on until the MAIN SWITCH is turned OFF and back ON.

Other Points to Consider:

1. Please do not use any MCUs just designs with simple ICs and resistors etc.

2. With your quote for this project also provide 2 things.

a) Total Components used. (Count All Components including Resisters)

b) Approximate Total Cost of all major components used in 1 circuit. (Do not count the cost of Resistors and other tiny components)