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Drains laying construction
- Jan 17, 2018 -

① determine the drainage system access position;

② select the correct type of inspection wells (which must be matched with the drainage ditch), and drainage connections;

(3) Put the inspection well to the correct position and connect the inspection well with the access port of the municipal drainage system with the connecting piece;

④ installation of cover (to prevent deformation of the side wing pouring concrete);

⑤ pouring side wing concrete to the required height. The maximum height can be the same with the actual height of the ground.