Good morning friends As we all stay in hostel most common problem we face is taking bath in cold water, we cant take bath in cold water in rainy season it leads to fever and so many other problems ,it cant be tolerated in this rainy season.There is a solar water heater on the terrace but i don't know the reason why it is not working. so we all together can think of the solution for this problem and we can further discuss with Chinnababu sir. I hope you all will think over it and give a permanent solution for this problem.