The water meter is not broken. The water company forced the water meter to be replaced within 6 years. Who is the beneficiary?

The staff of the water company in Fancheng, Linyi County, Dingxi City, Gansu Province, forced to replace the water meter for a fee of 140 yuan. The author asked the staff whether there is a mandatory replacement of the water meter related documents and the charging standards? The staff said that everyone changed, leaving your family. Another female staff member has a tough attitude and said: "Do not replace the water meter, the water fee plus the error, and charge 12 tons of water in January." The author asked to see the documents and replace the water meter. The female staff asked the author to check the Internet and say that they relied on The meter replaces the water meter.