Setting In And Back-Filling - 4rain FLAT Notice D'installation Et D'entretien

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longitudinal or the transverse sides in the installation
pit
The spacings between the tanks must be L: min. 100
mm, Q: min. 0 mm. The individual spaces in be-
tween must be well sealed with a hand rammer.
The connecting pipe sections may not be shortened
and must extend at least 100 mm into the tank.
"L"
min. 100
"Q"
min. 0
5.3

Setting in and back-filling

Set the tanks with suitable equipment without bump-
ing into the prepared installation pit.
In order to prevent deformations fill the tanks one-
third full with water before filling in the installation pit
(control sealing). Then fill in with round pebble
2 3/3
stones (max. grain size 8/16 mm) in layers of max.
300 mm up to the upper edge of the tank and com-
pact.
100
The individual layers and the area with the connec-
tions must be well sealed (with a hand rammer).
Avoid damage to the tank while sealing. Never use
mechanical compacting machines. The enclosure
must be at least 100 mm wide. Ensure sufficient
sealing particularly in the lower region between the
tanks.
1. 1/3
18 / 40