05.04
Connecting the front connection adapters
If pipes DN 200 or 250 are
connected using a front connec-
tion adapter, the geotextile filter is
cut open in a cross pattern in the
area of the channel connections.
Then, the front connection adapter
is inserted in the C3 shaft. It must
be ensured here that the textile
lies flat against the shaft wall and
does not project into the opening.
The geotextile filter then positions
itself in the joint between the shaft opening and the front
connection branch. For a retention basin, the front connection
branch, which is made of PE-HD, must be firmly welded to the
PE-HD plastic liner sheet. KG pipes can be connected to the
spigot of the front connection branch with a socket.
05.05
Connecting the RAUSIKKO boxes
The C3 shaft body must be positi-
oned with the channel openings
toward the neighbouring
RAUSIKKO box in such a way that
there results an uninterrupted
passage from the shaft to the
inspection channel of the
RAUSIKKO box.
37
EN