Use and Care Guide
4
FLOOR DRAINS
4
3. Embed a 20" x 20" (50 x 50 cm) cut
section of KERDI in the bond coat and
work the membrane onto the KERDI-
DRAIN bonding flange and surrounding
membrane to ensure full coverage and
remove air pockets. The KERDI is carried
to the step in the bonding flange (template
provided) and must overlap the DITRA or
DITRA-XL membrane by a minimum of 2"
(50 mm).
Grate assembly
Grate
1. The grate assembly is installed
in conjunction with the tile. Place the
height adjustment collar inside the lateral
adjustment ring and snap the grate frame
into place.
Note: For drains with 6" (150 mm) grates,
the height adjustment collar is integrated
with the grate. For the residential adaptor
kit, there is no lateral adjustment ring.
2. Fill the step in the bonding flange with
Schluter SET
®
, Schluter ALL-SET
®
, Schluter
FAST-SET
®
or unmodified thin-set mortar
and back-butter the underside of the grate
frame to ensure full support. Press the
assembly into the mortar and install the
surrounding tiles, ensuring full coverage.
3. Position the grate to match the joint pattern
of the tile covering and press flush with
the tile surface. Remove all excess setting
material.
Note: Protect the visible surface of the
grate from contact with setting and grouting
materials. In particular, anodized aluminum is
sensitive to alkaline materials.
Tileable Covering Support
1. The covering support is installed in
conjunction with the tile. Place the tile
spacer inside the lateral adjustment ring.
2. Fill the step in the bonding flange with
thin-set mortar and press the assembly
into the mortar. Install the surrounding tiles
up to the tile spacer using Schluter SET
®
,
Schluter ALL-SET
®
, Schluter FAST-SET
®
or unmodified thin-set mortar, ensuring
full coverage. Set the tile to the integrated
tabs on the lateral adjustment ring, which
provide for a flush transition to the covering
support. Remove all excess setting
material. Position the tile spacer to match
the joint pattern of the tile covering.
3. Apply tile to the top of the covering support
using Schluter SET
®
, Schluter ALL-SET
®
,
Schluter FAST-SET
®
or unmodified thin-set
mortar. The tile is installed flush with all
sides of the covering support to provide the
drainage openings.
4. Once the assembly has been set and
grouted, remove the tile spacer and
insert the tiled covering support
in the lateral adjustment ring.
Note: For acid-resistant coverings, use an
epoxy adhesive to set and grout the tile.
KERDI-LINE
Preparation
When installing KERDI-LINE against a wall, be
sure to factor in wall board thickness before
cutting the hole in the substrate.
1. Any leveling of the floor must be done
prior to the installation of the channel
body. For installation adjacent to the
wall, the channel body must be aligned
in accordance with the thickness of the
wall covering. For intermediate installation,
use the supplied filling strip with peel-and-
stick adhesive layer to make the channel
support symmetrical.
2. KERDI-LINE can be installed in conjunction
with the provided channel support as
described below or set in loose mortar.
KERDI-LINE is connected to the waste line
with the appropriate mechanical no-hub
coupling in accordance with the coupling
manufacturer’s instructions.
Channel body installation
Access to plumbing from below
When there is access to the plumbing from
below and the waste line can be connected
after installing KERDI-LINE, the channel body
may be set without making a connection to the
waste line simultaneously.
1. Apply Schluter SET
®
, Schluter ALL-SET
®
,
Schluter FAST-SET
®
or unmodified thin-set
mortar to the substrate where the drain is
to be placed with a notched trowel and
solidly embed the channel support in the
mortar.
2. Apply Schluter SET
®
, Schluter ALL-SET
®
,
Schluter FAST-SET
®
or unmodified thin-
set mortar to the top of the channel
support with a notched trowel and press
the channel body firmly into the mortar,
ensuring full support of the bonding flange.
Check to make sure the KERDI-LINE is
level.
No access to plumbing from below
When there is no access to the plumbing from
below, the channel body must be set and
connected to the waste line simultaneously.
1. Begin the drain installation by dry fitting the
components. Measure and cut a section of
pipe to connect the coupling to the odor
trap below the floor, using the channel
support as a spacer.
2. Apply Schluter SET
®
, Schluter ALL-SET
®
,
Schluter FAST-SET
®
or unmodified thin-
set mortar to the top of the channel
support with a notched trowel and press
the channel support firmly onto the
underside of the channel body. Attach the
mechanical coupling to the drain outlet and
the cut section of the pipe per the coupling
manufacturer’s instructions.
3. Apply Schluter SET
®
, Schluter ALL-SET
®
,
Schluter FAST-SET
®
or unmodified thin-set
mortar to the substrate where the drain is to
be placed with a notched trowel. Prepare
the cut section of pipe and odor trap with
cleaner, primer and ABS or PVC cement
per the solvent cement manufacturer’s
instructions.
4. Solidly embed the channel support and
KERDI-LINE into the mortar on the floor
and connect the cut section of pipe to the
odor trap. Check to make sure the KERDI-
LINE is level.
5. The screed is then placed flush with the top
of the bonding flange of the KERDI-LINE.
Slope the mortar bed using the bonding
flange and mortar screeds as guides.
Note: KERDI-FIX or other adhesives that
are compatible with EPS foam can be used
to install the channel support and channel
body as an alternative to thin-set mortar.
Apply a generous bead of KERDI-FIX to
the top and bottom of the channel support.
The use of KERDI-FIX limits the ability to
level KERDI-LINE.
Note: Schluter
®
-Systems strongly
recommends a leak test be performed
on the connection between the drain and
waste line prior to continuing on with
the remainder of the installation whenever
possible. Refer to local plumbing and/or
building codes for any specific requirements
in your area.
Connection to waterproofing
membranes
The KERDI or DITRA waterproofing membranes
can be installed as soon as the mortar bed can
be walked upon.
1. KERDI, DITRA or DITRA-XL is installed up to
the outer edge of the KERDI-LINE bonding
flange using Schluter SET
®
, Schluter ALL-
SET
®
, Schluter FAST-SET
®
or unmodified
thin-set mortar. The thin-set mortar must
be mixed to a fairly fluid consistency, but
still able to hold a notch.
a. KERDI: Apply Schluter SET
®
, Schluter
ALL-SET
®
, Schluter FAST-SET
®
or
unmodified thin-set mortar to the mortar
bed surrounding KERDI-LINE with a 1/4"
x 3/16" (6 x 5 mm) V-notched trowel or
the KERDI-TROWEL, which features a
1/8" x 1/8" (3 x 3 mm) square-notched
design. Embed KERDI in the bond coat
with the flat side of the trowel to ensure
full coverage and remove air pockets.
b. DITRA: Apply Schluter SET
®
,
Schluter ALL-SET
®
, Schluter FAST-
SET
®
or unmodified thin-set mortar
to the mortar bed surrounding
KERDI-LINE with a 1/4" x 3/16" (6 x