4.
T
ANK
INS
TALLA
TION
Graf UK Ltd
5
TANK INSTALLATION
4
1.
Subsoil
2.
Telescopic dome shaft
3.
Compact foundation
4.
Surrounding (round-grained gravel, maximum grain size 10 to 20mm)
5.
Covering layer
6.
Carat underground tank
7.
Concrete layer for surfaces used by passenger cars
1
4
7
6
3
2
5