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entire product‘s cement surface, then comb through thinset bed creating channels pointing in same direction as applied on
subfloor. If a 1/2 in. square notch trowel was used to apply thinset to the subfloor, you want to apply only a flat skim coat of
thinset on the rear side of the Fundo.
11. Press the Fundo firmly into the thinset bed (sloped side up) ensuring that the installation is level along its perimeter and sides,
and thinset attachment and coverage is void free. Apply some weight equally and leave on surface and drain area to allow the
thinset to initially cure without being disturbed (e.g. tile boxes). Make sure the floor waste pipe is centered within the wedi
drain unit and remains there until the drain connection is completed.
12. Apply wedi provided safe Lubricant to the Rubber Sealing Gasket and insert the Rubber Sealing Gasket between the wedi Drain
Unit‘s interior and the outside of the 2 in. waste pipe in the floor. Push the Rubber Sealing Gasket down along the waste pipe
until it is stopped by the Drain Unit‘s lower interior flange.
13. Apply wedi provided safe Lubricant to the rubber part of the Compression Spacer. With the rubberized part pointing up now
insert the Compression Spacer in between Drain Unit and waste pipe and on top of the Sealing Gasket. The Compression
Spacer will push the Rubber Sealing Gasket down into its resting position. The Compression Spacer’s rubberized part will not
always sit flush with the floor waste pipe’s edge, which is due to the thinset thickness tolerances under the shower base. Note:
The rubberized part of the Compression Spacer is not part of the wedi drain’s waterproofing design – it is used solely to keep
all dirt out of the drain connections.
14. Insert the Locking Nut with notched side up into the threaded part of the Drain Unit opening and screw down until Locking
Nut top is flush with top edge of Drain Unit‘s threaded part. Important: Turn Locking Nut to LEFT to insert and screw
into flush position (turn Counter-Clockwise).
15. Insert Strainer Key into Locking Nut at notch connections and with Strainer Key printed side up. The Strainer Key is used as a
tool to tighten the compression seal of the Drain Unit, but remains in place later to serve as a hair catcher to protect the drain
and make maintenance and cleaning easy.
16. Insert a flat headed screwdriver into Strainer Key slit and turn LEFT to tighten the compression seal (turn Counter-Clockwise).
Achieve a hand-tight fit and do not over-tighten.
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17. Loosely insert the Alignment Ring 1 into the Drain Unit opening with printed side up. Align the notch and arrow in Alignment
Ring 1 with the arrow printed on the Drain Unit. Alignment Ring 1 has a threaded inside which will later allow you to insert a
Drain Cover Extension, which will allow you to laterally and vertically move your drain cover for perfect alignment with the tile
finish. Alignment Ring 1 is also needed to support the drain cover unit when no Drain Cover Extension is used. Alignment Ring
1 has built in drainage slits to allow the thinset mortar around the drain area to drain water more quickly.
18. Insert the Snap Ring 2 into Drain Unit opening with printed side up. Align its arrow and protruding key fitting into the notch
and arrow of the Alignment Ring 1. The Snap Ring 2 needs to be secured in place with its perimeter notches snapping into
grooves which are premade in the Drain Unit. Snap Ring 2 is used to secure the movable Alignment Ring 1, and it is needed
to later support the Drain Cover unit. It is equipped with drainage slits to allow thinset mortar around the drain area to drain
water more quickly.
19. Dry fit the building panels to ensure the proper fit into the perimeter channel. Clean the perimeter channels from dust or any
other contaminants. Set up a continuous 1/2 in. bead of wedi Joint Sealant along the Ligno‘s channel on the outer perimeter
and only in areas where you can immediately install a building panel into the fresh sealant.
20. Push the wedi building panel fully into the channel of the shower base, being sure the bead of sealant is fully compressed.
Smooth out any pushed out sealant on inside seam using a putty knife. Fasten the panels directly to the studs starting 1 ft
above the base and in corners while keeping the board pushed down into the channel, and set the wedi fasteners with wedi
washers at a rate of 1 fastener per 1 ft. On every framing stud, one fastener has to be installed through the seam between two
adjoining building panels to create a smooth transition. wedi requires wedi building panels to be installed in all areas exposed
to water and never lower than 6 inches above any shower fixture.