The following four steps shall be followed when installing Chongqing composite well cover:
1. Before installation, the foundation of well cover shall be neat and firm, and the inner diameter, length and width shall be determined according to the size of Chongqing composite well cover.
2. When installing Chongqing composite well cover on cement pavement, attention should be paid to the concrete pouring on the masonry of the wellhead, and a concrete protective ring should be built around the wellhead for maintenance for about 10 days.

3. In order to keep the well cover beautiful and the writing and pattern clear, pay attention not to dirty the well cover when pouring asphalt and cement on the pavement.
4. When installing Chongqing composite well cover on asphalt pavement, attention shall be paid to avoiding direct rolling of well cover and well seat by construction machinery to avoid damage.
Chongqing polymer composite manhole cover is a new type of high-strength manhole cover, which is molded with advanced technology and equipment. According to the inspection of relevant departments, the bearing capacity of heavy manhole covers is more than 40T. At the same time, the anti-aging index of heavy manhole covers is far beyond the national standard through the inspection of the National FRP Quality Supervision and Inspection Center. It is a replacement for other cast iron well covers and cement well covers. It is widely used in municipal, pipeline, channel, power supply, water supply and other projects.
1. Its most prominent advantage is that it is not reinforced with steel skeleton, but with glass fiber composite reinforcement. It belongs to GRC type product. Therefore, it has the advantage of being unaffected in the current situation of rising steel prices. 　　
2. Chongqing polymer composite manhole cover is the most ideal, advanced and incomparable with other moulds.
3. Its curing speed is several times faster than that of fiber concrete. It can be demoulded in 8 hours. If it is produced in three shifts, it can be demoulded three times in 24 hours. Although the mold consumption is more than that of stone plastic, it is only about 1/6 of that of fiber concrete manhole cover, which can also reduce the mold investment.
4. Its strength is only inferior to stone plastic well cover. It can carry more than 40 tons of vehicles.
5. Its comprehensive function is between stone plastic well cover and concrete well cover, superior to concrete; It can be applied to the occasions with high technical requirements for well covers.