Covering The Ecobloc Inspect System - Graf ECO BLOC INSPECT FLEX Notice D'installation

7. Installation
7.7

Covering the EcoBloc Inspect system

Before filling the installation, all inlets, vents and
shafts must be connected. Before backfilling
ensure that the geotextile is not pulled apart.
Overlaps must remain in place when filling.
The EcoBloc Inspect system must not be
driven over directly with construction
machinery.
Fill the sides of the EcoBloc Inspect installation
with gravel (grit 8mm/16mm) (0,31"/0,63") at least
up to the top edge of the EcoBloc Inspect system.
Above the top edge, the excavated soil can be
used to cover the EcoBloc Inspect system.
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