Graf Garden Comfort Platin 1500 L, Руководство по установке

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3
. INS
TALLA
TION
&
AS
S
EMBL
Y
Graf UK Ltd
7
INSTALLATION & ASSEMBLY
3.4 Insertion and filling
The tanks must be inserted, impact-free, into the
prepared trench using suitable equipment. To avoid
deformities, the tank is filled 1/3 with water before
filling in the tank surrounding.
Afterwards the surrounding (roundgrain 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.
3.5 Routing connections
All feed and overflow pipes must be routed with a
decline of at least 1 % in the direction of flow (possible,
subsequent settling 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, without 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.
3
Drainage
solution