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Cut the 2” (50.8 mm) pipe ush (or max. 1/8“ [3.2 mm] above) to the
oor construction. Make sure that the cut out ts to the Fundo panel
drain. Cut out a 5” (127 mm) diameter hole around the 2” (50.8 mm)
pipe to allow for the wedi drain to be inserted into the suboor while the
cut out area must remain free of deection. The drain and trap have to
be sturdily fastened to the sub oor.
Assemble the drain unit following
the instruction drawing.
03
Set up a continuous 1/4” (6.4
mm) bead of wedi sealant
along the top side of the wedi
Fundos’ valve groove prole.
Optionally you can apply the
bead on the underside of the
main drain body‘s ange. This
will help keeping sealant off
the threads of the main drain
body when it is inserted.
Drop the drain body firmly into
the sealant.
wedi Fundo Primo Installation
Before Installation:
 Have 2 × 4 blocking installed over bottom plate between studs along to
support wedi Building Panel to shower base transition area.
 Suboor is stable, even and loadbearing, and meets deection criteria of
maximum L/360 as per IRC. Wooden or concrete structural substrates are
dry and sufciently loadbearing considering live and dead load. Wood and
Steel framing is sufciently loadbearing, plum and square.
 Floor drain assembly below oor is stabilized, xed and supported in posi
-
tion, and will not sink under water load.
 Only wedi products (Building Panels, Curb, Joint Sealant and Fasteners) are
used for wedi Fundo Shower System assembly.
 Installer has received instructions from wedi Technical Sales Staff or is in
-
formed about proper installation methods as described.

wedi Shower Bases can be cut to size using a skilsaw. The Z notch channel
must be remade and cleaned from sawdust or other possible contamination.
 Follow applicable state or local plumbing codes requiring specic and
dimensioned waterproofed areas for a shower system or other wet
room installation. Requirements in this manual supersede local plum-
bing codes; they extend and are not in conict. wedi Shower Systems
or other wet room installations in which non-wedi product is also used
require specic
project recommendations by wedi and may reduce the
extent and installation
area of protection offered by wedi’s warranty.