Routing Connections; Installing The Shaft Extension And Covering; Inspection And Maintenance - 4rain MODULARIS Serie Einbau-/ Montage-/ Und Wartungsanleitung

5.4

Routing connections

All feed and overflow pipes must be routed with a de-
cline 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.
6.
Cover
Shaft Extension
Seal
MODULARIS underground tank
The shaft extension can be shortened at the grooves. This allows earth coverage from 400 to 780 mm
above the tank shoulder.
To mount the shaft extension
seal supplied . It is not necessary to attach the extension, as the shaft is held in position by the sur-
rounding soil after filling in the installation pit.
Then set on the cover
cover firmly enough so that a child cannot open them!
Inspect the entire system at least every three months for sealing, cleanliness and stability.
Maintenance of the entire system is required in intervals of around five years. This includes cleaning all
system components and controlling their function. Proceed as follows with maintenance:
•
Completely empty the tank.
• Control all built-in parts for firm seating.
Otto Graf GmbH – Carl-Zeiss-Str. 2-6 – D-79331 Teningen – Tel.: +49 (0)7641/589-0 – Fax: +49 (0)7641/589-50
info@4rain.eu
www.4rain.eu
5. Installation and assembly

Installing the Shaft Extension and Covering

set the extension loosely onto the tank opening
and close off with child protection. Tighten the screw connections on the
7.

Inspection and Maintenance

– a trademark of the Otto Graf GmbH
>1%
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and then mount the
02-2014