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5.
Installation and assembly
5.2.1 Slope, embankment etc.
When installing the tank in the immediate vicinity
(< 5 m) of a slope, mound or embankment (slope
greater than 2 %), a statically calculated supporting
wall must be built to absorb the earth pressure. The
wall must exceed the dimensions of the tank by at
least 500 mm in all directions and be at a minimum
distance of 1000 mm to the tank.
5.2.2 Groundwater and cohesive (water-impermeable) soils (e. g. clay soil)
The tank must not be installed in groundwater/ stra-
tum water. If groundwater/ stratum water is expected
to only occasionally appear, it must be drained via a
drainage pipe.
If necessary, the drainage line must end in a vertical-
ly mounted DN 315 pipe, in which an immersion
pressure pump has been inserted that pumps out
the excess water. The pump must be inspected reg-
ularly.
5.2.3 Installation next to areas with traffic
If the underground tank is to be installed next to
traffic areas, the minimum distance to these areas is
> H
equal to at least the pit depth (H).
H
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