Installation Manual
IF SERVICE OF THIS TOILET IS EVER REQUIRED,
READ THIS BEFORE SERVICING PRODUCT.
DO NOT REMOVE TOILET FROM VEHICLE.
DO NOT SEPARATE CERAMIC BOWL FROM PLASTIC BASE.
DO NOT REMOVE FOOT PEDAL FROM BASE.
DISASSEMBLY OF COMPONENTS MAY VOID WARRANTY.
SEE MANUAL AND REPLACEMENT KITS FOR SERVICE INFORMATION.
Dometic Corporation
Sanitation Division
Call Customer Service: 1-800-321-9886 (8 a.m. – 5 p.m. ET)
STOP
TOILET DOES NOT NEED TO BE REMOVED FROM VEHICLE FOR BASIC REPAIRS (if necessary)
Flush ball seal – Dometic’s
revolutionary ball seal allows future
replacement of worn or damaged
ball seals without requiring tools or
toilet disassembly. The ball seal can
be changed in just a few minutes
without removing the toilet from the
oor. Detailed replacement instruc-
tions are included with replacement
ball seal kits.
Snap-in water valve cartridge –
Allows easy replacement of worn
or damaged water valves. In cold
climates, be sure to follow winter-
izing procedure in owner’s manual
to help avoid water valve failure.
Refer to replacement instructions
in new water valve kit prior to
removal or installation of water
valve assembly.
Factory-sealed bowl-to-base
assembly – Unlike other Dometic
foot-pedal toilets, the bowl and
base of 300, 310, and 320 series
toilets should not be separated for
any reason.
Each Dometic toilet is 100% factory-tested to assure a watertight seal in the toilet bowl before it
is shipped.
After installation at the RV or other vehicle factory, the entire toilet and waste tank system is ood-
tested for leaks by lling the system with water to the rim of the toilet bowl. This process requires
holding the ush ball open with a device which may temporarily distort the ball seal from its original
shape and, as a result, cause the seal to leak water into the waste tank during normal use. The ball seal
may need to be reconditioned to its original shape.
IF NEW TOILET DOES NOT HOLD WATER IN BOWL…
Please follow the procedures below before attempting to replace the seal.
1. Hold ush ball in full open position by pressing on
pedal.
2. Using nger, apply moderate downward pressure
around edge of ball seal.
3. Close ush ball.
4. Keeping ush ball closed, pour one quart of
hot tap water into toilet bowl.
5. Let water cool completely.
6. Check for leak.
If leak still persists, ush ball seal should be
replaced. Follow instructions provided with
replacement seal kit.
Notes on using the manual
Caution!
Safety Instruction: Failure to observe this instruction can cause material damage and impair
the function of the device.
Note
Supplementary information for operating the device.
g.
1
A : This refers to an element in an illustration. In this example, item A in gure 1.
General safety instructions
The manufacturer will not be held liable for claims for damage resulting from the following:
• Faulty installation or connection
• Damage to the unit from mechanical inuences, misuse or abuse
• Alterations to the unit without express written permission from the manufacturer
• Use for purposes other than those described in this manual
Warnings
The following statements must be read and understood before installing, servicing and/or
operating this product. Modication of this product may result in property damage.
1. Do not use chlorine or caustic chemicals, such as laundry bleach or drain-opening types, in
the system. These products damage the seals in toilets and other plumbing valves.
2. Do not permit foreign objects (paper towels, paper cups, diapers, sanitary napkins, etc.) to be
ushed through the toilet.
3. Mechanical seal toilets are designed to only discharge directly into a holding tank. Horizontal
pipe runs as found in conventional residential or commercial plumbing systems cannot be
accommodated.
4. Toilet bowl must be regularly cleaned and winterized according to “Cleaning” and “Winteriza-
tion and storage” procedures in this manual, or your warranty coverage may be voided.
Intended use
Dometic 300, 310 and 320 series toilets provide lightweight, residential-size toilets for installation
directly above a holding tank.
Benefits
PowerFlush technology. Improved pressurized rim ow creates high-speed vortex of water for full
bowl rinsing.
Premium user comfort. Full-size seat and deep bowl result in greater homelike performance.
Easy installation. Two-bolt design ts most existing toilet oor anges – great for new or replace-
ment installations. Just place on oor ange, tighten bolts, connect water, and it’s ready.
Ergonomically enhanced pedal operation. Lower pedal height for easier use; “one-direction”
action to add water and ush.
Customer service
Toilet model identification
The toilet model identication label is located on the toilet base
under the water valve. Please have this information ready if
contacting Dometic for customer service.
Contact information
There is a strong, worldwide network to assist in servicing and
maintaining your toilet system. For the Authorized Service Center
near you, please call from 8:00 a.m. to 5:00 p.m. (ET)
Monday through Friday.
You may also contact or have your local dealer contact the Parts
Distributor nearest you for quick response to your replacement parts
needs. They carry a complete inventory for the Dometic product line.
Telephone: 1-800-321-9886 U.S.A. and Canada
330-439-5550 International
Fax: 330-496-3097 U.S.A. and Canada
330-439-5567 International
Websites: http://www.Dometic.com
Model 320
standard height
Elongated wood seat
Ceramic bowl
Polypropylene base
Ceramic bowl
Polypropylene seat
and base
Polypropylene seat,
bowl and base
Model 321
low-prole height
Model 310
standard height
Mod el 311
low-prole height
Model 300
standard height
Model 301
low-prole height
Limited Warranty
THE SELLER NAMED BELOW MAKES THE FOLLOWING WARRANTY WITH RESPECT TO
DOMETIC GRAVITY-FLUSH MODELS 300, 301, 310, 311, 320, AND 321 ONLY
1. TWO-YEAR LIMITED WARRANTY
1A. This Limited Warranty will be in effect for two years from the date of purchase.
1B. This Limited Warranty is made only to the First Purchaser (hereinafter called the “Original Purchaser”)
who acquired the product for Original Purchaser’s personal, family, or household-type use. The Original
Purchaser should retain a copy of the sales receipt or invoice as evidence of the date of purchase because
proof of purchase is required to obtain warranty service.
1C. If this product is placed in commercial or business use, it will be warranted, to the Original Purchaser only, to
be free of defects in material and workmanship for a period of 90 days from the date of purchase.
1D. This warranty covers all parts of the Dometic toilet which is warranted to be free of defects in material and
workmanship under normal use. This warranty does not cover conditions unrelated to the material and
workmanship of the product. Such unrelated conditions include, but are not limited to, (a) faulty installation
and any damage resulting from such; (b) the need for normal maintenance and any damage resulting from
failure to provide such maintenance; (c) failure to follow Seller’s instructions for use of this product, includ-
ing failure which may result from not following winterization procedures; (d) any accident that results in
damage to this product; (e) scratching or staining of any ceramic or plastic component; and (f) acts of God,
or misuse of any part of this product and any alteration by anyone other than the Seller.
1E. For Original Purchaser (ONLY) to obtain the benets of this Warranty during the 2-year period (for personal
use) or 90-day period (for commercial use), the following shall apply:
(a) Original Purchaser shall contact the local dealer from whom the product
was purchased; or contact the Seller Customer Service Department at
1-800-321-9886 (8 a.m.-5 p.m. ET, USA) and provide the local dealer or
Seller Customer Service Department with sales receipt or invoice, product
model and serial number from product. The product model identication
label is located on the toilet base under the foot pedal and water valve
(see illustration).
(b) If product, while still under warranty, is returned to local dealer where
purchased, the local dealer will repair, replace or refund the product per
this Warranty and as authorized by the Seller. Seller will provide necessary
replacement parts or product free of charge to Original Purchaser,
including freight on such replacement parts or product, and Seller will pay
direct labor charges for such repair or replacement.
(c) Under no circumstances will Seller pay or be liable for any of Original Purchaser’s or dealer’s travel
charges or other expenses associated with bringing the product or recreation vehicle to the dealer for
repair, for providing dealer with access to the product or vehicle, or for downtime of the product or
vehicle.
(d) Original Purchaser may be required to return defective product or parts when requested by Seller;
in such event, Seller will pay related freight costs.
2. THE SELLER DOES NOT AUTHORIZE ANY PERSON OR COMPANY TO CREATE OR EXTEND ANY
WARRANTY OBLIGATIONS OR LIABILITY ON ITS BEHALF.
3. REPAIR OR REPLACEMENT OF, OR REFUND FOR, DEFECTIVE PRODUCT, AT SELLER’S OPTION,
SHALL BE THE ORIGINAL PURCHASER’S SOLE REMEDY UNDER THIS LIMITED WARRANTY.
IN NO EVENT SHALL SELLER BE LIABLE FOR PURCHASER’S INCIDENTAL OR CONSEQUENTIAL
DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO
YOU.
4. SELLER DISCLAIMS ALL OTHER WARRANTIES WITH RESPECT TO THE PRODUCT, WHETHER
EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SOME STATES DO NOT ALLOW
LIMITATIONS ON IMPLIED WARRANTIES OR HOW LONG AN IMPLIED WARRANTY LASTS, SO THE
ABOVE LIMITATION MAY NOT APPLY TO YOU.
5. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER
RIGHTS WHICH VARY FROM STATE TO STATE.
SELLER:
Dometic Corporation - Sanitation Div.
13128 SR 226
Big Prairie, Ohio 44611 USA
330-439-5550
Location of product ID label
7 Operation
7.1 Add water to bowl
To add water to the toilet, press the ush pedal
part way down. Water ows into the bowl while
ush ball remains closed. If the ush ball moves,
let up on the pedal slightly. Adding water to an
empty bowl helps prevent holding tank odors from
entering the living space. Adding water is recom-
mended prior to ushing solids and toilet paper.
7.2 Flush toilet
To ush, press pedal down until it contacts the
oor. Release pedal after complete ush.
• When ushing liquids, press the pedal for 1-2 seconds.
• When ushing solids, press pedal until contents are rinsed from bowl. Flushing longer than
necessary will cause holding tank to ll too quickly.
A small amount of water will collect in the bowl after a ush to create an airtight seal.
Note
Residual water trickle in ceramic bowls: Due to integrated rim of models 310, 311, 320
and 321 toilets, water may continue to trickle into toilet bowl for up to 20 minutes after
ushing. If water trickle continues after 30 minutes, replace water valve.
Note
To ensure holding tank odors do not enter the living space, make sure 1 inch (24 mm) of
water remains in the toilet bowl. Depending on variations in plumbing systems and user
operation, the “add water” function may be required to achieve the 1-inch water depth.
8 Cleaning
8.1 Routine toilet cleaning
For routine cleaning, use SeaLand
®
Toilet Bowl Cleaner. If this cleaner cannot be found in your area,
contact Dometic for your nearest dealer. If the cleaner is not available, use most any non-abrasive
bathroom and toilet bowl cleaner. Please follow label instructions.
For stubborn stains on model 300 and 301 toilet bowls, carefully use rubbing alcohol to remove them.
8.2 Flush ball/seal cleaning
After a period of time, mineral deposits from hard water may
build up on the ush ball or seal, resulting in a slow water
leak. To prevent this, periodically clean the ush ball and seal.
1. Remove minor debris from the ush ball and seal by
slowly pressing and releasing the ush pedal several
times. This will loosen and rinse debris from the surfaces.
Repeat several times for stubborn buildup.
2. If step 1 does not fully clean the ball and seal, clean with a soft bristle brush and SeaLand toilet
bowl cleaner. Fully clean the top of the ush ball and under the seal where it contacts the ush
ball. After cleaning underside of seal, apply light downward pressure to top of seal while
brushing around full perimeter of seal.
3. If this does not correct a leaking seal, it may require replacement.
Flush directions are located under
toilet seat lid.
Gravity-ush toilet
Instruction manual
EN
SANITATION
TOILETS
300 Series, 310 Series, 320 Series Toilets