Insertion And Filling; Routing Connections - Graf PLATIN XXL 20.000 Notice D'installation Et D'entretien

5.5

Insertion and filling

The tanks must be inserted, impact-free, into
the prepared trench
equipment. To avoid deformities, the tank is
filled 1/3 with water before filling in the tank
surrounding.
Afterwards the surrounding
gravel, max. grain size 8/ 16) is then filled in
layers of max. 30 cm steps and is
compacted.
The individual layers as well as the
medial support column must be well-
compacted (manuel tamper). Damage to
the tank must be avoided during compaction.
Mechanical compaction machines must not
be used under any circumstances. The
surrounding towards the trench must be at
least 100 mm wide.
5.6

Routing connections

All feed and overflow pipes must
be routed with a decline of at least
1 % in the direction of flow
(possible, subsequent
must be taken into consideration
in this case). If the tank overflow is
connected to a public sewer, this
must be protected against reflux
by means of a lifting station
(mixed sewer) or reflux seal (pure
rainwater sewer) according to DIN
1986.
All suction, pressure and control
lines must be routed in an empty
pipe, which must be routed as
straight as possible,
bending, to the tank with a decline. Necessary bends must be formed using 30° moulded sections.
Important: The empty pipe must be connected to an aperture above the max. water level.
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5. Installation and assembly
using suitable
(roundgrain
settling
>1%
Kanal
without
1. 1/3
1. 1/3
/
2. 3/3
>1%
>1%