Water Level Indicator-level 4

An Electronic circuit project ,based on the principle salt conducts electricity.

The yellow wire is the power wire that passes current to the water in the jar. We have the rest of the wires placed at each level to find out if the water has reached upto that level.

When the water touches the wire ,current passes from yellow to that wire via salt present in the water. Once when the final level is reached, the motor that was initially ON goes to OFF and the buzzer alarm switches ON via the relay(electrically operated switch that connects and disconnects two circuits).

I've used 4066 Switch IC. Pins x1, x2, x3, x4 are connected to the voltage regulator(used to create and maintain fixed output voltage) supply ,which is the yellow wire and the rest are the supply that comes from the other wires. And the output is the led pins.

These are the 4 water levels and IC pin diagram