Installation Guide

ManualsBrandsSchluter Systems ManualsShower Base PartsKerdi-Drain Stainless Steel Shower Drain

INSTALLATION — Shower base with Schluter

-KERDI-DRAIN-H 27

Dry fit the Schluter

-KERDI-SHOWER-CB

compensation board and KERDI-SHOWER tray. If

necessary, cut the tray and compensation board to

size. Take measurements for the drain flange and

ABS/PVC outlet pipe locations.

Place the KERDI-SHOWER-CB compensation

board and solidly embed in the mortar.

Apply Schluter SET

, ALL-SET

, FAST-SET

, or

unmodified thin-set mortar to the top of the KERDI-

SHOWER-CB compensation board using a 1/4" x

3/8" (6 mm x 10 mm) square- or U-notched trowel.

Place the KERDI-SHOWER tray and solidly embed

in the mortar.

Mark and cut compensation board for the KERDI-

DRAIN-H flange opening using the template

provided (maximum 5" (125 mm) diameter). Mark

and cut a 2-3/4" (70 mm) – 3" (76 mm) maximum

wide slot for the ABS/PVC outlet pipe. Do not

exceed the maximum to ensure proper tile support.

Dry fit the plumbing components. Measure and

cut a section of pipe to connect KERDI-DRAIN-H

to the odor trap using the detachable center

section of the tray, or foam spacers included with

the drain, as a spacer. Proper slope MUST be

maintained to ensure adequate drainage. Prepare

the pipe and KERDI-DRAIN-H with cleaner,

primer, and ABS or PVC cement per the solvent

cement manufacturer’s installation instructions and

connect.

Note: Schluter Systems strongly recommends a

leak test be performed on the connection between

the drain and the waste line prior to continuing with

the remainder of the installation whenever possible.

Refer to local plumbing/or building codes for any

specific requirements in your area.

Apply Schluter SET

, ALL-SET

, FAST-SET

, or

unmodified thin-set mortar to the bonding flange

and recess area in the tray with a 1/4" x 3/16"

(6 mm x 5 mm) V-notched trowel or the KERDI-

TROWEL. The thin-set mortar must be mixed to a

fairly fluid consistency, but still able to hold a notch.

Embed the KERDI membrane collar in the bond

coat and work the membrane onto the KERDI-

DRAIN bonding flange and shower base to ensure

full coverage and remove air pockets.

Apply Schluter SET

, ALL-SET

, FAST-SET

, or

unmodified thin-set mortar to the substrate using a

1/4" x 3/8" (6 mm x 10 mm) square- or U-notched

trowel.

Apply Schluter SET

, ALL-SET

, FAST-SET

or unmodified thin-set mortar to the KERDI-

SHOWER-CB compensation board and to the top

and bottom of the detached center section of the

KERDI-SHOWER tray. Slide the center section into

place below the drain to ensure solid and uniform

support of the bonding flange.

Note: If mosaic tiles (tile format less than 2" x

2" (50 mm x 50 mm)) will be used on the shower

tray, the shower tray seam is located over the pipe

cut-out, or the tray will be exposed to heavy loads

the slot in the compensation board must be filled

with a sand mortar or dry-pack to ensure proper

support of the tile assembly.

Seal inside corners by abutting adjacent sheets

and installing KERDI-BAND with Schluter SET

ALL-SET

, FAST-SET

, or unmodified thin-set

mortar, centered over the joint. Install KERDI-

KERECK prefabricated waterproofing corners at

all inside and outside corners. When using the

KERDI-BOARD-SC curb, seal the curb to the

base and walls using KERDI-KERECK and KERDI-

BAND.

Preparation

Plywood, OSB or concrete subﬂoor must be clean, even, and load bearing. Any leveling must be done prior to compensation board and shower tray

installation.

Schluter

-KERDI-DRAIN-H

Please refer to Schluter

-Systems' installation videos in addition to reading the instructions below.

INSTALLATION