The separator is installed below ground level and completely surrounded by concrete. Generally the depth from ground level to the top crown of the main shell should be no more that 2 metres. This may vary depending upon water conditions. Deeper inverts may be accommodated on a standard shell, providing the water table level does not exceed 2 metres above the top crown of the main shell. In cases where deeper burial is required for high water table conditions, heavy-duty shells are available.
If the tank is installed where traffic or other superimposed loading can be applied, it is necessary to consult your engineer to design a reinforced concrete slab to prevent the load being transmitted to the tank or its concrete surround. It is important to ensure that if the slab is constructed immediately above the tank, it should be separated by compressible material.
Failure to do so may result in damage of the tank. Please refer to the technical manual for detailed installation instructions