American Standard A8001L-RHO Instructions D'installation page 3

2
All of the shower bases require purchasing a round shower
strainer type drain for use with a standard 2" (51 mm) plastic
schedule 40 waste pipe. Figure B shows the typical drain
assembly. Before installing drain into the shower base,
remove strainer. (Fig B) This will be installed after shower
base is in its final position. Cut the waste pipe height so that
the drain body will fit snug in the shower base. Apply silicone
sealant between the drain body and shower base.
NOTE: Drain not included and must be purchased separately.
3
Mix a non-shrinking bedding material
such as mortar and apply enough
bedding material to support the entire
bottom of the shower base.
Concrete is NOT recommended. The
shower base is NOT to be supported
by the base flange.
4
After the bedding material has been poured and before it sets, lower
the shower base into position with the drain assembly sliding over the
waste pipe (Fig. C). It will be necessary to "rock" the shower base until
the top of the tile flange aligns with the lines drawn on the stud walls
from Step 1. Make sure the apron is contacting the rough floor along the
entire length of the shower base and ensure that the base is level in two
directions as shown in Figure D.
5
Tape over the strainer to protect the
finish and prevent construction debris
from entering the drain.
Finish installation as shown in Figure E.
To secure the shower base to wood
studs, use drywall screws with
flatwashers or roofing nails immediately
above the flange of the shower base.
To secure the shower base to the
steel studs, use 4" drywall screws and
flatwashers.
Note: Allow the bedding material to completely harden before applying weight to the bottom of the shower base.
Place strainer back into place and conduct a water test of drain and plumbing to ensure there are no leaks.
NO BEDDING
MATERIAL UNDER
BASE FLANGE
3-1/2"± 1/8"
(89± 3mm)
BEDDING MATERIAL
SUPPORTS
SHOWER BASE
FIGURE C
SUGGESTED SHOWER BASE INSTALLATION METHOD
WOOD
STUDS
WATERPROOF DRYWALL
OR CEMENT BOARD
ROOFING NAIL
SEALANT
SECURE SHOWER BASE TO THE STUDS AS SHOWN FOR WOOD OR STEEL STUD CONSTRUCTION.
FIGURE E
Rubber
Caulking
Gasket
Drain
Body
Silicone
Sealant
Rubber
Gasket
FIGURE B
CROSS SECTION OF
SHOWER BASE
Bedding
Material Area
5" (127mm)
FIGURE D
TYPICAL FLANGE MOUNTING DETAIL
STEEL
STUD
STUDS
WATERPROOF DRYWALL
OR CEMENT BOARD
TILE
SHOWER
BASE
- 3 -
DRAIN ASSEMBLY
Strainer
Shower
Base
Fiber
Gasket
Locking
Nut
ROUND SHOWER
STRAINER TYPE DRAIN
2 x 4"
2" (51mm)
(51 x 102mm)
PVC Pipe
Stud Wall
Level
Level
Level base in two directions.
STEEL
STUD
WASHER
TILE
4" (102mm)
SEALANT
DRYWALL
SCREW
SHOWER
BASE
755470-100 Rev. 4 (7/22)