In Shanghai, there are some 130 professional sewer divers. One of them is 38-year-old Qian Yunfeng from Jiangsu Province and he has been working as a sewer diver in Shanghai for 10 years.

All of the city's water rates include a 1.70-yuan-per-cubic-meter sewer fee. ... Shanghai will raise residential water prices when it puts a new three-tiered water pricing system into effect in ...