SeaLand 4400 Series Toilet Operation Manual - Manual (Page 6)

6
Maintenance/winterizing/service Dometic 4300/4400 Series Toilets
6.1 Cleaning the toilet
To maintain the toilet’s original, lustrous appearance, use SeaLand ® Toilet Bowl Cleaner or other
non-abrasive bathroom and toilet bowl cleaners. Please follow label directions.
6.2 Routine maintenance
MONTHLY
1 . Inspect toilet, plumbing and plumbing connections, wires and wire connections .
2 . Check in-line water filters, if applicable .
YEARLY
Check water valve filter. Also check water valve filter if water flow into toilet becomes insufficient.
6 Maintenance/winterizing/service
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 .
Caution
Shut off the toilet system before servicing and do not leave the vehicle for extended
periods of time with toilet system circuit breaker on .
PRESSURIZED FRESH WATER SYSTEM
1. Drain potable water tank and empty holding tank.
2 . Add freshwater antifreeze to potable water tank .
3 . Flush potable water antifreeze and water mixture through toilet(s) and into entire system,
including the waste holding tank . Turn off electric power to toilet .
Each installation is different, so required amounts of antifreeze may vary. User discretion is
required to assure adequate protection.
6.4 Recommended spare parts
The following spare parts should be available at all times. Refer to parts list for item number to order.
To order spare parts, refer to Customer Service section .
Description Quantity
Flush ball seal kit 1
Flush ball 1
Electric water valve 1
Vacuum breaker assembly 1
6.3 Winterizing
At the end of each season, the Dometic toilet should be winterized for storage by using
potable water-safe antifreeze (if vehicle will be exposed to freezing temperatures) .
Caution
Never use automotive-type antifreeze (ethylene glycol) in freshwater systems .
Note
Use nontoxic antifreeze (propylene glycol) designated for potable water systems.
(See vehicle owner’s manual .)