Routing Connections - 4rain 295022 Instrucciones De Instalación / Montaje / Mantenimiento

5.4

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).
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.
The telescopic dome shaft can be shortened at the grooves. This allows for earth covers above the tank
shoulder of between 400 and 780 mm.

Shaft Extension

Seal

Modularis Basic underground tank
To fit the telescopic dome shaft, place it loosely on the tank opening; fit the seal beforehand. Fixing of the
extension is not necessary, the shaft is held in position by the surrounding soil after filling in the pit.
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5. Installation and assembly
6. Assembling the and shaft extension
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Status: 04-2010