Dometic MasterFlush 7640 Instruction Manual

8
Dometic MasterFlush Toilet Operation / Maintenance and winterizing
Note
Residual water trickle in ceramic bowls: Due to integrated rim of this toilet bowl, water
may continue to slowly trickle into toilet bowl for up to 20 minutes after ushing. If water
trickle continues after 30 minutes, replace water valve.
Caution – Do Not Flush Foreign Objects!
Flush only water, bodily wastes and rapid-dissolving toilet
tissue. Do not ush wet wipes, sanitary napkins, diapers,
paper cups, cotton swabs, food, hair or liquids such as
oils or solvents as clogging or damage to the toilet or toilet
system may occur.
Note
Make sure all guests understand toilet operation before use.
7.3 Changing “Flush” modes
MasterFlush 7640 toilets offer two ush settings to help manage water consumption:
Normal flush – Uses 0.83 gal. (3.1 liters) per ush. Adds water to bowl after every ush.
Dry Bowl flush – Uses 0.21 gal. (0.79 liters) per ush. Does not add water to bowl after ush.
To change from Normal to Dry Bowl ush setting, press ush pedal for about 10 seconds. Flush mode
has been changed to Dry Bowl setting. Change mode to Normal ush by following the same
procedure.
8 Maintenance and winterizing
8.1 Routine toilet cleaning
For routine cleaning, use Dometic
®
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.
Caution
To avoid damaging internal seals, do not clean toilet with abrasive cleaners, caustic
chemicals, or lubricants and cleaners that contain alcohols or petroleum distillates.
8.2 Routine maintenance
MONTHLY
1. Inspect toilet, plumbing, and plumbing connections, wires, and wire connections.
2. Open and close all plumbing valves.
3. Check in-line water lters, if any, for blockage.
YEARLY
Check water valve lter. Also check water valve lter if water ow into toilet becomes insufcient.
8.3 During extended periods of non-use
The macerator toilet and sanitation system should be protected if toilet will not be needed for an
extended period of time (more than two weeks, especially in hot weather).
1. Flush toilet in “Normal” mode and add 4 oz. (118 ml) of liquid biodegradable laundry detergent
(should NOT contain bleach or environmentally harmful substances).
(“Maintenance” continued on next page)

Dometic MasterFlush 7640 Specifications

General

Brand	Dometic
Model	MasterFlush 7640
Category	Plumbing Product
Language	English