www.graf.info
15 / 39
ß
< 300 mm
< 300 mm
< 300 mm
< 300 mm
> 100 mm
ß
--> DIN 4124
6
3
1
4
2
5
> 100 mm
7
1
5
3
4
2
4.
Tank structure
Water connector box internal (optional)
PE cover for telescopic dome shaft
Telescopic dome shaft (can be inclined by 5°)
Profile seal
Tank dome
5.
Installation and assembly
Subsoil
Telescopic dome shaft
Compacted foundation
Surrounding (round-grained gravel, max.
grain size 8/16)
Covering layer
PLATIN Rainwater Underground Tank
Concrete layer for surfaces used by passenger
cars
ß
--> DIN 4124 from 1250 mm depth of the trench