The automatic water tank filling system is a simple project designed by a timer IC 555. The time has to be adjusted in the circuit after the specified time the pump will go out of state and stop filling with water.
The automatic water filling system circuit diagram and the free PCB layout are given on this website and my YouTube channel. Download and do it yourself.
Working of an automatic water tank filling project
The circuit is constructed on a printed circuit board and the connections are properly done with soldering iron and lead.
The time has to be adjusted by the capacitor and the Potentiometer connected to the circuit. Any changes have to be made to the values of the capacitor and the resistor will change the time duration of the circuit.
The time of filling water varies according to the storage capacity of the water tank. For example, the 2000-liter water tank needs 10 minutes to fill up. And the 4000-liter water tank needs 15 minutes to fill up.
So adjust the Potentiometer to your convenient time. After the specified time, the relay gets on or off which can control the motor pump
Water tank automatic system circuit
Working of this circuit
The circuit is working based on the delay of the relay. When we set a particular time to on the relay the relay will be turned on and disconnect the relay from the ac contact.
The AC is connected with the relay input pin and an output pin the water pumping motor has to be connected.
so the circuit is on the water pump gets on and off when the tank is filled with water at a particular period.
Automatic water tank PCB layout
Download PCB layout
NOTE: you can increase the delay of the relay on time by increasing the values of the capacitor (100uf) and 10M potentiometer. I set this circuit up to a 16-minute time delay. if you want to increase the time delay comment on this post.
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