Rain brings plenty of crops and mak po cleanliness and health. Too little rain and our easy access to water for industry instance, the would slow down the progress of Thailand For Too much rain also has some they a result of too much floods of 193 are still fresh in our memories. But are rain progress in a large, city Maintaining and expanding the sewage system of allowed to like Bangkok is not inexpensive. However, if the system is behind the people's needs, the expense will become greater and greater. it is wise that the govemmental unit concerned should pay attention to sewage system improvement as early as possible.