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2.
Installation conditions
Coverage heights with shaft extension in the green
area.
The maximum soil coverage from the tank shoulder
can be taken from the maximum length of the origi-
nal shaft extension, max. 780 mm.
This may not be extended, but may be shortened to
400 mm if necessary.
The tank must not be installed under areas of traffic.
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.
Since the occurrence of groundwater/ stratum water
is difficult to prevent in advance, we generally rec-
ommend installing a drainage pipe (see 5.2.2).
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