Hey Friends its summer here and temperatures rising as high as 45 degree To 50 degree Celsius coolers are ready for use. 

In the Cooler water is carried on from a lower tub to an upper tub for draining it on to a special grass fixed on the walls, now this requires a pump of 50 watts at least and it consumes more energy and water if running continuously.

So I design this automatic cooler pump controller circuit or you can say this is a delay auto on-off timer circuit.

The second problem is that due to continuous flow of water, the water in the tank also ends very quickly And you have to get up from sleep at night and pour water again.

This automatic Cooler Pump Controller Circuit will Solve all your Problems