In recent studies it is found that people normally avoid the cleaning of overhead water tank because it is very troubleshooting to clean the tank manually. They have to face a lot of difficulties like - continuous work in the dirty places, irregular payments, use of irritating and harmful chemicals and so many other reasons. In public sectors like schools, bus stops, railway stations, restaurants and hotels etc., in most of the cases nobody pays attention towards cleaning the tank due to involved extra cost and efforts. Hence this project is very useful for solving all these problems. Having an automatic overhead water tank cleaner, having capability to clean the tank easily and quickly is solution for all the above problems.