Nantong, a prefecture-level city in Jiangsu Province, is located in the southeast of Jiangsu, and was called Tongzhou in ancient times. The city covers an area of 8544 square kilometers and has a population of 7.305 million, which belongs to subtropical monsoon climate. The main backbone rivers (first-class rivers) in Nantong are Jiaogang River, Ruhai Canal and Jiuweigang River, with a total length of 742.34 kilometers. Secondary river 105, total length1760.58km. In addition, there are many third-and fourth-grade rivers. The Nantong section of the main stream of the Yangtze River is 87 kilometers long, with a river width of 6~ 18 kilometers and an average annual flow of 28,700 cubic meters per second, which is rich in water resources. The water quality in the main stream of the Yangtze River is good, and the water quality in the middle reaches reaches the Class II water standard. It is the main water supply source of Nantong and an important channel for Nantong's external water transport.

In recent years, with more and more people joining the team of safe water quality and healthy drinking water. The state and governments at all levels have also been promoting water pollution control and people's drinking water health measures.

In addition to the increasing demand for installing water purifiers and water purification systems in a single family, people pay more and more attention to the cleaning of household water pipes. It not only prolongs the service life of the filter element of the water purifier, but also removes the dirt and bacteria left on the inner wall of the domestic water pipe, which greatly guarantees the drinking health of family members.

Richun water pipe is well received by customers, and the current water pipe cleaning market is excellent, which is the best choice for Nantong family water pipe cleaning project.