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Please note: The maximum earth covering of
1200 mm must not be exceeded.
In case of car traffic, an appropriate cover
according to EN 124 class B must be used. In
addition, the telescopes must also be provid-
ed with a concrete collar. The earth covering
must be between 400 and 1000 mm.
If the system is not going to be driven over,
the distance to areas that can be driven on
must correspond with the depth of the pit.
3. Installation conditions
The GRAF EcoPure 200 can only be installed in
groundwater and stratum water to a limited ex-
tent. Please refer to point 5.7 of these instruc-
tions.
In case of heavy goods vehicle traffic, an ap-
propriate cover according to EN 124 class D
must be used. In addition, a load distribution
plate must be provided by the customer (load
bearing capability plans available from Otto Graf
GmbH). The earth covering must be between
700 and 1200 mm.
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