Mustee 3739 User manual

INSTALLATION INSTRUCTIONS
READ ALL INSTRUCTIONS CAREFULLY AND INSPECT PRODUCT FOR DAMAGE BEFORE STARTING YOUR INSTALLATION
INCLUDED IN CARTON:
TOOLS AND MATERIALS REQUIRED FOR INSTALLATION:
Model:
U
P
C
R
E.L. Mustee & Sons, Inc.
5431 West 164th St.
Brook Park, OH 44142
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.mustee.com
•Pad (Roof felt, Landscape fabric or House wrap)
•OPTIONAL: Mortar Cement
•1/4" Dowel Rod (For Drain Seal Installation)
3739
TRANSFER SHOWER FLOOR
Instruction
Sheet
Deck Screws 3/4" long minimum
Roofing Nail 1" long
OR
ACCESSORIES (ORDER SEPARATELY)
Part No. Size Type
390.301 24" Straight
390.305 18" Straight
390.306 36" Straight
390.304 34" x 18" Inside Corner
Part No. Size Type
390.401 26" Right Hand
390.402 26" Left Hand
390.403 32" Right Hand
390.404 32" Left Hand
390.409 26" Straight
390.410 32" Straight
390.413 23" Straight
Pull-Down Shower Seats
Part No. Size Type
390.323 24" Straight
390.324 36" Straight
Stainless Steel Grab Bars
1½" Diameter
1¼" Diameter

2
ROUGH-IN DIMENSIONS:
ALCOVE FRAMING:
39"
37"
6½"
6½"
16¾" 18½" 19½"
16"
11½"
C
L
C
L
Ref.
6¼"
4"
½"
37"
18½"
39"
19½"

3
PREPARATION:
Before installing the Shower Base you will need to prepare the alcove area. Plan rough plumbing requirements
(drain-venting-supply lines) at this time according to local building codes.
Additional bracing to support optional grab bars and or seat should be installed at this time. Refer to the accessory
manufacturer’s instructions for proper installation.
INSTALLATION:
STEP 1:
The Shower Base must be installed on a sub-floor. A one-piece section of plywood or OSB the same thickness
as the surrounding sub-floor must be securely fastened in position so Shower Base is fully supported.
(Note: Use 2 1/2" deck screws to secure sub-floor). A 6 1/2” square opening will need to be cut in sub-floor
(reference “ROUGH-IN” dimension) to accomodate shower floor integral drain body.
If Shower Base will be installed on a concrete/cement slab the 6 1/2” square opening will need to be a minimum
of 2 1/2” deep.
SUB-FLOOR PREPERATION
Sub-floor must belevel.
Alcove plumb and square.
Drain connection requires a 2" PVC, ABS, or Iron
DWV waste pipe.
Top of drain pipe must be cut 1/2" below
top of sub-floor and secured from below.
6½"
SQUARE
OPENING
½"
NOTE: AN UNLEVEL SUB-FLOOR
WILL CAUSE DRAINAGE
ISSUES WITH YOUR
SHOWER BASE.
2" Drain Pipe

4
STEP 2:
Set Shower Base into alcove
and check for level condition.
Level should be placed on top
of tile flange as shown.
STEP 3:
Place a level on the floor to ensure
floor slope to drain. The bubble
should be slightly off center.

5
STEP 4:
STEP 5:
Remove shower base from alcove.
Install a felt pad onto sub-floor.
Be sure pad fills the whole area of alcove.
Reset Shower Base into alcove. The Shower Base
can be retained in the alcove by installing large
headed roofing nails over the tile flange on each stud.
Or predrill 1/8" diameter holes in the tile flange and
secure to studs using deck screws. Place a dab of
silicone into holes before installing screws.
Do not over-tighten screws.
If a mortar bed is going to be used, you will notice a
20½" diameter flat circle on the bottom of the shower
base around the drain area. DO NOT put any mortar
into this area as it could cause the shower base to
lift in that area and cause issues with water draining
properly. Recheck level of the shower base.
See steps 2 and 3.
NO MORTAR IN THIS AREA
SHOWER BASE BOTTOM
20½" Dia. Circle

STEP 6:
SI-198 (09-20)
STRAINER‡
SHOWER FLOOR
SUB-FLOOR
DRAIN SEAL-PN 32.401†
(SUPPLIED)
2" PVC, ABS, OR IRON WASTE PIPE
Installing Drain Seal - Apply liquid soap to the inside and outside of Drain Seal. Place Drain Seal over waste
pipe and push into drain cup. Using a hammer and 1/4" dia. dowel rod, tamp Drain Seal into place.
Top of Drain Seal should be even with the top of the waste pipe when fully installed.
Press Strainer into place.
† Optional DRAIN SEALS are available:
PN 32.403 - 2" SOIL PIPE/CAST IRON
SERVICE WT. (NO HUB)
PN 32.404 - 2" COPPER PIPE, TYPE K, L, or M
PN 32.405 - 1½" PVC, ABS, or IRON PIPE
‡ Optional STRAINERS are available:
PN 34.301 - POLISHED STAINLESS STEEL
PN 42.326 - CHROME PLATED
PN 42.327 - GOLD PLATED
CARE & CLEANING
The surface of your MUSTEE SHOWER FLOOR may be cleaned with a mild soap solution in warm water using a soft cloth. When using s cleaner product,
carefully read the label to ensure that the cleaner is safe for use on the material. Stubborn stains can be cleaned using “Soft Scrub ” by Clorox or a
powdered detergent such as “Spic-n-Span ”. Do not allow cleaners to sit or soak on the surface. Wipe surface clean and rinse completely with water
immediately after cleaner application. Rinse and dry any overspray on nearby surfaces. Never use abrasive scouring powder or steel wool pads, as they
will scratch the surface.
®
®®
INSTALLATION QUESTIONS
Questions on the installation or missing parts, call 216-267-3100 or email [email protected] for assistance.
Please have the installation manual available when calling.
DO NOT RETURN PRODUCT TO THE PLACE OF PURCHASE.
TYPICAL WALL INSTALLATION
SHOWER FLOOR
SUB-FLOOR
BEDDING
1/8" GAP
CAULK
GREENBOARD/DRYWALL
CEMENT BOARD/BACKER BOARD
(½" Thick Min.)
FINISHED WALL
1/8" GAP
TILE / SOLID SURFACE OR GLUED-ON
WALL PANEL INSTALLATION DETAIL