Repairing sewer, water lines causes sufferings

The sewer and water lines of Dhaka City are repaired and reconstructed every year. It creates huge sufferings for the city dwellers. I think I speak for everyone when I ask, why do the same lines have to be repaired and reconstructed every year? Dhaka is an overcrowded city and traffic gridlock is a common phenomenon of our daily life. These repair tasks further complicate the situation. Sewer and water lines should be constructed firmly so that no repair is required before a considerable 
period of time. 

Mohammad Ahsan Habib, By email