Warranty Registration and Inquiry
For product warranty registration, TOTO U.S.A. Inc. recommends online warranty registration. Please visit
our website http://www.totousa.com. If you have questions regarding warranty policy or coverage, please con -
tact TOTO U.S.A. Inc., Customer Service Department, 1155 Southern Road, Morrow, GA 30260
(888) 295-8134 or (678) 466-1300 when calling from outside of U.S.A.
Installation Manual
Manual de Instrucciones
Manuel D’Installation
CST775
CST776
CST785
CST786
* Actual parts may appear different from drawing according to the model.
* El producto real puede variar en apariencia dependiendo del modelo.
* Le produit réel peut varier en apparence en fonction du modèle.
2
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TABLE OF CONTENTS
THANKS FOR CHOOSING TOTO!
The mission of TOTO is to provide the world with healthy, hygienic and more
comfortable lifestyles. We design every product with the balance of form and function
as a guiding principle. Congratulations on your choice.
Thanks for Choosing TOTO! ..............................................................................................2
Common Tools Needed .................................................................................................... 2
Included Parts ..................................................................................................................... 2
Before Installation ............................................................................................................... 3
Installation Procedure ........................................................................................................ 3
Maintenance Instructions ................................................................................................... 6
Care and Cleaning ...............................................................................................................5
Warranty ...............................................................................................................................8
CEFIONTECT Cleaning Instructions ................................................................................ 7
Check to make sure you have all these parts from the package:
COMMON TOOLS NEEDED
Bowl
Tank
Tank to Bowl Gasket
Bolts (metal) - 2
Washers (rubber) -2
Washers (metal) - 4
Nuts (metal) -4
• 10” adjustable wrench
• Carpenter’s Level
• Hacksaw
• Tape Measure
• Hand Pliers
• Flat Screwdriver
• Putty Knife
ADDITIONAL ITEMS (NOT SUPPLIED BY TOTO):
• Bowl Wax Ring
• Closet Flange Mounting Bolts
(usually 2 T-bolts, 2 metal washers and 2 nuts)
• Water Supply Line
(typically 1/2” compression to 7/8” ballcock)
• Toilet Seat (TOTO SoftClose recommended)
Caps (plastic) - 2
Base (plastic) - 2
INCLUDED PARTS
Fill Valve
Cone Washer -1
Fill Valve T-Nut -1
®
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BEFORE INSTALLATION
Read these instructions thoroughly before beginning work.
Please leave instructions for customers. These instruction contain maintenance
and warranty information.
If necessary, remove the existing toilet.
IMPORTANT!
Due to the powerful performance of our Tornado, G-Max, E-Max and Power Gravity
flushing systems, they are not specified for back-to-back installations. The only
means of installing these toilets in a back-to-back situation is when the toilet drain
connections incorporate a WYE fitting. Please contact your builder or contractor prior
to this installation.
Double Combination WYE / 1/8 Bend
YES
Double Sanitary Tee / Sanitary Cross
NO
INSTALLATION PROCEDURE
ill. 1
ill. 2
Wax Ring
Horn
Bolt Cap
Nut *
Washer *
Base Cap
Bowl Base
Three Points of Contact
* Not Supplied
ill. 3
For your new TOTO toilet to fit correctly, the rough-in,
the distance between the finished wall to the center of
the closet flange, must be at least 12 inches for most
models.
NOTE: Models with 10” rough-in have model numbers
ending with “.10”, for example C776CEFG.10.
Centerline of
Stop valve
Finished wall
5
7/8
”
(150mm)
Centerline of
Flange
8”
(203mm)
3½
” (90mm)
“RI”
1) Clean any debris out of the closet flange and then install
new mounting bolts (not supplied) into the slots of the
closet flange (see ill. 1). The head of the bolt should be
inserted into the slot with its threads facing upward.
2) Carefully turn the toilet upside down onto some padding.
Firmly press a new bowl wax ring (not supplied) onto the
circular recess around the toilet bowl’s horn (see ill. 2). Turn
the toilet upright and gently lower into position over
the closet flange. With toilet properly aligned, press firmly
on both sides of toilet rim to set the bowl wax ring (see
ill. 3).
CAUTION: Do not move the bowl after the
bowl wax ring is set. Thread the nuts and
tighten evenly until bowl is snug to closet
flange. Install the bolt caps (see ill 3).
CAUTION: Do not overtighten the nuts as
damage to the china bowl may result.
NOTE: Rocking may occur depending on the
condition of the ooring. In that case, use
shims to prevent the toilet from rocking.
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INSTALLATION PROCEDURE
ill. 4
ill. 5
Tank to Bowl
Gasket
1
3
2
Fill Valve Nut
Flush Valve Nut
Metal Washer
Nut
Rubber Washer
Bolt
Cut Away View
Points of Contact
ill. 6A
Use 10" adjustable wrench
NOTE: Three Points of Contact:
The toilet bowl has three points of contact, which
will actually contact the bottom of the toilet tank
when properly installed. The location of these
points can be seen on the bowl at the tank
receiving area. The three points are front left (1),
front right (2), and back center (3). Recall these
three points during the Toilet Tank installation.
3) Place the tank upside down onto some padding. Inspect
the smaller fill valve nut and larger flush valve nut for a
secure connection (see ill. 4). Try to tighten the nuts with
your hands. If loose, tighten the nut hand tight and an
additional 1/4 turn for the smaller fill valve nut and an
additional 1/2 turn for the larger flush valve nut.
Place the tank-to-bowl gasket onto the flush valve nut.
While pressing down, spread the gasket over the nut
until the gasket touches the bottom of the tank. A slight
gap between the tank bottom and the gasket is allow-
able.
4) Lay the tank down on its back. Place a rubber washer
onto a bolt (see ill. 5). Reach inside the tank and position
the bolt through one of the holes in the bottom of the
tank. On the outside of the tank, place a metal washer
and nut onto the bolt. Hold the bolt centered in the hole
and tighten the nut finger tight.
Turn the nut an additional 1/2 turn with a wrench. Repeat
this process for the remaining hole in the tank.
5) Pick up the tank and carefully guide the bolts to
align the tank with the bowl. Attach a metal
washer and nut to each bolt (see ill. 6A).
5
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INSTALLATION PROCEDURE
7/8” Ballcock Thread
HAND TIGHTEN ONLY
ill. 7
WARNING!
DO NOT USE IN-TANK BOWLCLEANERS.
The use of high concentration of chlorine or chlorine-related products can seriously
damage fittings in the tank. This damage can cause leakage and property damage.
TOTO shall not be responsible or liable for any tank tting failure or damage caused
by the use of in-tank bowl cleaners.
CARE AND CLEANING
NO
NO
YES
ill. 6B
3
1 & 2
3 Gap
1 & 2
3
1 & 2
Gap
Tighten until tank makes THREE POINTS OF
CONTACT with the bowl (see ill. 6B).
6) Flush the water supply line for a few seconds
to remove any debris that may enter the new
fill valve.
(For new home constructions and/or
additions, flush the water supply line for more
than a minute to help remove any residual
PVC adhesives, solder flux, and/ or pipe
sealants that were used for the new
plumbing.)
Connect the water supply line to the fill valve threads as
seen at the bottom of toilet tank (see ill. 7).
Tighten this connection finger tight.
CAUTION: Avoid using a wrench to tighten the connec-
tion as you may damage the plastic threads and/or cause
the fill valve to rotate inside the tank.
NOTE: The water supply pressure should be 20 to 80 psi static.
7) Turn water supply ON and check for leaks from the tank. Flush the toilet a few
times to check for issues and leaks. Make sure NO WATER LEAKS on the bowl and
tank.
8) After there are no more leaks, caulk the base of the toilet.
9) Install the toilet tank lid onto the toilet tank top.
6
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Water Level Adjustment
Type A Type B
7) Connect water supply to fill valve shank and hand-tighten only.
NO TE: Do not overtighten. These are plastic parts. Never use pipe dope on any
water supply connection.
8) Attach refill tube to fill valve nipple and clip other end of refill tube to the overflow
pipe.
9) Turn water supply ON and check for leaks outside the tank.
NO TE: As water fills the tank, water is also directed into the overflow tube via the
refill tube. This additional flow of water is critical to refilling your toilet’s bowl.
Once the water stops filling the tank, some residual drops of water may drip
from the fill valve. This is NORMAL as these drops will subside.
Fill Valve Installation Procedure
1) Shut off the water supply to the toilet.
2) Flush toilet and remove remaining water from tank with a sponge.
3) Remove the water supply connection at the fill valve.
4) Remove old fill valve and use damp sponge to clean ll valve hole in tank.
5) Place new fill valve inside tank hole.
6) Thread mounting nut onto fill valve shank and tighten the nut.
NO TE: Do not overtighten. Be sure to install fill valve in a position that does not
interfere with the trip lever operation.
MAINTENANCE INSTRUCTIONS
Water Level
Depending on the manufacturing plant, you may have one of two of the
following fill valves:
For Type A Fill Valve:
There are no water level adjustments. The fill
valve has been preset at the factory.
For Type B Fill Valve:
Refer to the water level (WL) setting on the tank
label. Allow the water to fill the tank. Turn the
adjustment screw clockwise in the (+) direction
to increase the water level height (see ill 1).
Turn the adjustment screw counter-clockwise in
the (-) direction to decrease the water level
height. Flush the toilet to verify the correct
water level. Adjust as necessary.
Top of
Overflow
Tube
Water
Level
ill. 1
7
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MAINTENANCE INSTRUCTIONS
Flush Valve
Chain
Overflow Tube
Refill Tube
ill. 1
ill. 2
CEFIONTECT
®
CLEANING INSTRUCTIONS
Replacing the Flush Valve
No CEFIONTECT®
With CEFIONTECT®
WHAT IS
CEFIONTECT®?
CEFIONTECT® is TOTO’s super-smooth permanent glaze that prevents
debris from sticking to surfaces. Products with the letter “G” in the
number have the CEFIONTECT® glaze. This glaze, along with regular
cleaning, will help keep your TOTO product in pristine condition.
NOTE:
For best results to keep your Toto product with CEFIONTECT® clean:
• Lavatory: Use a mild dish detergent with a clean, soft cloth.
• Toilet: Use a gel based cleaner with a soft bristled-plastic brush.
• Don't use cleaners, polishing powders or detergents that have gritty or
coarse particles.
• Don't use bleach, chemical thinners or products that have acid or
alkaline detergents listed as ingredients.
• Don't use metal scrub brushes or steel wool.
Following these instructions will ensure that your TOTO product with the
CEFIONTECT® glaze will always stay intact, keeping your product like new
for years to come!
1) Shut off the water supply.
2) Flush the toilet to remove the water inside the tank.
3) Remove the tank lid and place somewhere safe.
NOTE: Before removing anything from the tank, note
the placement of the ush valve, chain and refill tube.
4) Unhook the refill tube from the overflow tube of the
ush valve.
5) Unhook the chain from the trip lever.
6) Uninstall the tank (refer to the toilet installation
manual).
7) Remove the ush valve body from the tank.
8) Replace the ush valve in the same position as the
former ush valve.
9) Hand tighten the mounting nut of the ush valve and
use a wrench to tighten another 3/4 turn.
10) Reinstall the tank onto the bowl and place the chain
and refill tube the same way as it was for the former
ush valve.
11) Turn the water supply back.
12) Check for any leakage after the tank has been filled.
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WARRANTY
1. TOTO warrants its vitreous china products (“Product”) to be free from defects in materials
and workmanship during normal use when properly installed and serviced, for a period of one
(1) year from date of purchase. This limited warranty is extended only to the ORIGINAL PUR-
CHASER of the Product and is not transferable to any third party, including but not limited to
any subsequent purchaser or owner of the Product. This warranty applies only to TOTO Product
purchased and installed in North, Central and South America.
2. TOTO’s obligations under this warranty are limited to repair, replacement or other appropri-
ate adjustment, at TOTO’s option, of the Product or parts found to be defective in normal
use, provided that such Product was properly installed, used and serviced in accordance with
instructions. TOTO reserves the right to make such inspections as may be necessary in order to
determine the cause of the defect. TOTO will not charge for labor or parts in connection with
warranty repairs or replacements. TOTO is not responsible for the cost of removal, return and/
or reinstallation of the Product.
3. This warranty does not apply to the following items:
a. Damage or loss sustained in a natural calamity such as fire, earthquake, flood, thunder,
electrical storm, etc.
b. Damage or loss resulting from any accident, unreasonable use, misuse, abuse, negli-
gence, or improper care, cleaning, or maintenance of the Product.
c. Damage or loss resulting from sediments or foreign matter contained in a water system.
d. Damage or loss resulting from improper installation or from installation of the Product in
a harsh and/or hazardous environment, or improper removal, repair or modification of the
Product. (NOTE: Product model codes allow a maximum of 80 PSI. Check local codes or
standards for requirements).
e. Damage or loss resulting from electrical surges or lightning strikes or other acts which are
not the fault of TOTO or which the Product is not specified to tolerate.
f. Damage or loss resulting from normal and customary wear and tear, such as gloss reduc-
tion, scratching or fading over time due to use, cleaning practices or water or atmospheric
conditions.
g. Tank flushing mechanisms of plastic or rubber moving parts.
h. Toilet seats of plastic, wood or metal.
4. In order for this limited warranty to be valid, proof of purchase is required. TOTO encourages
warranty registration upon purchase to create a record of Product ownership at http://www.
totousa.com. Product registration is completely voluntary and failure to register will not dimin-
ish your limited warranty rights.
5. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS. YOU MAY HAVE OTHER RIGHTS
WHICH VARY FROM STATE TO STATE, PROVINCE TO PROVINCE OR COUNTRY TO COUN-
TRY.
6. To obtain warranty repair service under this warranty, you must take the Product or deliver it
prepaid to a TOTO service facility together with proof of purchase (original sales receipt) and a
letter stating the problem, or contact a TOTO distributor or products service contractor, or write
directly to TOTO U.S.A., INC., 1155 Southern Road, Morrow, GA 30260 (678) 466-1300 or (888)
295-8134, if outside the U.S.A. If, because of the size of the Product or nature of the defect, the
Product cannot be returned to TOTO, receipt by TOTO of written notice of the defect together
with proof of purchase (original sales receipt) shall constitute delivery. In such case, TOTO may
choose to repair the Product at the purchaser’s location or pay to transport the Product to a
service facility.
WARNING! TOTO shall not be responsible or liable for any failure of, or damage to, this Prod-
uct caused by either chloramines in the treatment of public water supply or cleaners containing
chlorine (calcium hypochlorite). NOTE: The use of a high concentrate chlorine or chlorine related
products can seriously damage the fittings. This damage can cause leakage and serious property
damage.
THIS WRITTEN WARRANTY IS THE ONLY WARRANTY MADE BY TOTO. REPAIR, REPLACEMENT
OR OTHER APPROPRIATE ADJUSTMENT AS PROVIDED UNDER THIS WARRANTY SHALL BE
THE EXCLUSIVE REMEDY AVAILABLE TO THE ORIGINAL PURCHASER. TOTO SHALL NOT BE
RESPONSIBLE FOR LOSS OF THE PRODUCT OR FOR OTHER INCIDENTAL, SPECIAL OR CON-
SEQUENTIAL DAMAGES OR EXPENSES INCURRED BY THE ORIGINAL PURCHASER, OR FOR
LABOR OR OTHER COSTS DUE TO INSTALLATION OR REMOVAL, OR COSTS OF REPAIRS BY
OTHERS, OR FOR ANY OTHER EXPENSE NOT SPECIFICALLY STATED ABOVE. IN NO EVENT
WILL TOTO’S RESPONSIBILITY EXCEED THE PURCHASE PRICE OF THE PRODUCT. EXCEPT TO
THE EXTENT PROHIBITED BY APPLICABLE LAW, ANY IMPLIED WARRANTIES, INCLUDING THAT
OF MERCHANTABILITY OR FITNESS FOR USE OR FOR A PARTICULAR PURPOSE, ARE EXPRESS-
LY DISCLAIMED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED
WARRANTY LASTS, OR THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUEN-
TIAL DAMAGES, SO THE ABOVE LIMITATION AND EXCLUSION MAY NOT APPLY TO YOU.
