1. According to the installation drawing and foundation drawing of buried sewage treatment equipment, prepare the foundation according to the size of the installation plan, and make a good concrete floor. The foundation requires an average bearing capacity of 5t/m2, and the foundation must be horizontal, and it can only be installed after the pouring and maintenance period of the concrete foundation is over. If the equipment is installed below the floor, the relative elevation of the foundation from the floor is subject to the drawing size, and the width and length of the surrounding excavation must be 511mm away from the foundation sideline.

2. Pipeline installation and connection should be considered when the equipment is in place. When the equipment is in place, it must be in accordance with the self-weight of the equipment in the instruction manual, and the installation sequence should be in place according to the field comparison chart. The position and direction of the cylinder should not be misplaced, and the distance between them must be correct.

3. according to the installation drawing, connect the pipes. after the equipment is in place, fasten the connected pipes with rubber pads to prevent the joints from leaking.

4. After the installation of buried sewage treatment equipment, the equipment and the foundation floor must be connected and fixed, absolutely ensuring that the equipment does not flow and float. At the same time, sewage must be injected into the equipment (if there is no sewage, it should be replaced by other water sources or tap water), and the fullness must reach more than 71% to prevent the equipment from floating. At the same time, check whether there is any leakage in each pipeline. There must be no leakage at the intersection of water testing pipes, and the equipment is not affected by the rise of surface water, which makes the equipment dislocation and tilt.

5. After the installation of the equipment is complete, soil can be filled around the equipment and in the gaps for compaction, and attention should be paid to leveling the ground:

(1) The manhole cover of the equipment must be about 51mm higher than the floor;

(2) soil should not be allowed to block the air inlet on the manhole cover plate.

6. Connect the control line of the electric control cabinet to the equipment, and pay attention to the steering of the motor of the underwater aerator and submersible sewage pump when wiring. For example, the basement control cabinet should be placed in a ventilated place and kept dry, and the general control cabinet should not be placed in the open air. Be protected from the sun and rain, etc. In order to avoid leakage of the control panel and the connector, the control panel will be burned.

7. Precautions for buried sewage treatment equipment:

(1) The installation place of the equipment must ensure that it rains without water accumulation;

(2) The outlet pipe of the equipment must be below 1.4m relative to the floor;

(3) There shall be no heavy objects above the equipment and no large vehicles passing by (referring to those without special design);

(4) generally, the equipment shall not evacuate the internal sewage, so as to prevent the underground water from floating the equipment.

8. Pay attention to the standard connection and plane layout of the equipment installation diagram and pipeline connection diagram. If the user requires, they can be arranged at will, but they must be put forward when signing the contract.

9. Connect the control circuit of the fan and water pump, and pay attention to the correct steering of the fan and water pump.