www.graf.info
11 / 40
Installation/ assembly/ and maintenance instructions for
GRAF Carat XXL underground rainwater tank
Carat XXL
mains water underground
reservoir
natural
16 000 - 122 000 litres
The points described in these in-
structions must be observed in all
cases. Failure to do so shall invali-
date the warranty. For any addi-
tional items purchased through
GRAF, you will receive separate
installation instructions in the
transport packaging.
The tanks must be checked for any
damage before the system is
transferred to the trench.
You can download any missing
instructions from www.graf.info or
request them from GRAF directly.
Contents
1.
GENERAL INFORMATION
12
1.1
Safety 12
2.
INSTALLATION CONDITIONS
13
3.
TECHNICAL DATA
14
4.
STRUCTURE OF TANK
16
5.
INSTALLATION 16
5.1
Foundation 17
5.2
Trench 17
5.3
Insertion and filling
18
5.4
Laying connections
18
6.
FITTING TANK DOME AND MAINS WATER
TELESCOPIC DOME SHAFT
19
6.1
Fitting tank dome
19
6.2
Fitting mains water telescopic dome shaft
19
6.3
Mains water telescopic dome shaft suitable for
pedestrian loading
19
6.4
Inner cover
20
6.5
Assembly of intermediate piece
20
7.
INSPECTION AND MAINTENANCE
20
