This document describes a water level indicator circuit that can be installed in overhead water tanks. It consists of sensors placed inside the tank that detect the water level and send signals to a circuit board. When the tank is full, the circuit activates a buzzer to alert the user and automatically shuts off the water pump to prevent overflow. The device allows users to monitor the water level without having to check the tank and ensures water is not wasted by overfilling.

2. Nowadays everybody has overhead tank at their
homes. But everyone who has a water tank above
knows the kind of problems that they face. Firstly
there is no system to track the water in the tank.
Then there come a secondary problem that is
when their water pump is started they have no
idea when it gets filled up and sometimes there
are situation where the pump keeps on pumping
water to the tank and the water starts spilling
out from the tank. There is wastage of energy as
well as wastage of water.

5. There are Four parts in this project:-
(i) The Sensor Part
It is generally a fixed support inside the tank having some nuts and
bolt with wires coming out.
(ii) The Circuit Part
It comprises the brain of the module, where in all the various
inputs from the sensors are fed. It is the unit from where you will
get all the information of how much of water is in the tank.
(iii) The Power Supply
It is the part where in you will be converting the A/C voltage to a
regulated voltage of 5V to the Circuit.
(IV) The Buzzer Part
It is responsible for bringing up the sound when the water level fills
up in the tank. It will also be having a speaker or a buzzer to alert.

6. Basically the unit is made up of various sensors acting as a switch.
What happens is when you turn on you water pump, the water starts
to get pumped from your underground reservoir or from your
underground water supply from the pipes to your water tank. In the
tank there is a set of sensors, in the water tank. Just think them as
a switch, as the work of the sensor will be to connect a circuit.
So the water starts to get filled in the tank and
when the water level in the tank starts to rise up, what happens is
that the sensors that is installed in the tank starts to get activated
one by one indicating the water level in the tank. And finally when
it reaches to its top most sensor, there will be a visual display as
well as a sound from the unit indicating that the water has filled in
the tank and one can be alerted that the tank has been filled up and
the water pump has to be switched off saving the electricity bill as
well asover flow of water from the tank.

7. • Overflow problems.
• To prevent wastage of energy.
• To prevent wastage of water.
• Attention.
• Observation.
• Automatic switch off.

8.  Water level indicator is used in applications like storage
tanks, boilers etc. to indicate level of water inside.
 Easily indicate when water level is full in tank with beep
Sound.
 Low cost.

9. This circuit not only indicates the amount of water present in the
overhead tank but also gives an alarm when the tank is full. This
worthy device starts ringing as soon as the water tank becomes
full. It helps to check overflow and wastage of water by warning
the customer when the tank is about to brim. It also provides
automatic control of pumps at a remote location.
 Now no need to go on the roof to look the water level.
 It shows the water level in your room like 1/4 tank, 1/2 tank,
3/4 tank and full tank.
 Alarm starts ringing as soon as tank becomes full.
 Suitable for every tank.

10. KAZIM NAWAZ(1306001)
MAHENDRA MISHRA(1306005)
GOVERDHAN (1306006)