We had a serious water problem in isai Ambalam school. We built a pond as a EBD project with the children. Then we realized that water is very precious. From that day we are aware of water. Then one day children noticed that the tank was over flowing. They came and asked how to turn off the motor automatically. I told them that I don’t know how to do that. Then they asked me that I studied Electronics and became an engineer couldn’t solve this problem. Then finally I wanted it to be automated. Through this process I learnt about relay. I was afraid to work with 230 volts and it was the first time for me to work with direct 230 volt.