Considering that it is not possible to bury polyethylene tanks without building an
underground chamber, so you should pay attention to the following points:
First make a hole in the ground and then line the walls with suitable wall*
materials (consider the dimensions of the wall and the distance between
the tank and the walls, which is 15 cm for tanks under 3000 liters and 40 cm
above 3000 liters). It is better to consider space for convenience, visits and
Cover the inside of the hole with a wall (protective structure). Wallthickness should be designed according to environmental conditions, hole
depth, soil type and external pressure. be careful that polyethylene tanks
should not be subjected to external pressure.
Prepare the surface below the tank (described in previous posts).
Insert the tank into the pit.
If the hole is drilled in a place that is a passageway, design the roof
according to the environmental conditions and install a vent in front of the
tank door. In this case, the space above the tank to the ceiling is at least
one meter. This space is intended for visits and services. If you can not
make this distance, place the vent just above the tank lid at a short