installation instructions

11 / 40
Installation, Assembly and Maintenance Instructions for FLAT
flat rainwater tank
1,500 L
3,000 L
4,500 L
6,000 L
7,500 L
9,000 L
Order no. 295120
Order no. 295121
Order no. 295122
Order no. 295123
Order no. 295124
Order no. 295125
It is essential that you observe the points
described in these instructions. Failure to
do so will invalidate all warranty claims.
For all accessory articles ordered from
4rain, separate installation instructions
are provided in the transport packaging.
Should any instructions be missing
please request these from us without
delay.
It is essential that you inspect the tanks
for possible damage before installation.
You can download missing instructions
from www.4rain.eu or request these from
GRAF.
Contents
1. GENERAL NOTES 12
1.1 Safety 12
1.2 Labelling obligation 12
2. INSTALLATION CONDITIONS 13
3. TECHNICAL DATA 14
4. TANK CONSTRUCTION 15
4.1 Tank components 15
4.2 Internal support pipes 15
5. INSTALLATION AND ASSEMBLY 16
5.1 Subsoil 16
5.2 Installation pit 16
5.3 Setting in and back-filling 18
5.4 Laying the connecting pipelines 19
6. INSTALLING THE SHAFT EXTENSION
AND COVERING 19
7. INSPECTION AND MAINTENANCE 20