Maintenance
2022 Interstate 24X 9-15
Restoring Service
1� Re-install the fully charged house batteries, if
removed�
2� Close the low point drain valves, water faucets,
and fresh water tank drain�
3� Reconnect water pump line�
4� Add water to the fresh water tank�
5� Turn the water pump on�
6� Open and close faucet valves one at a time until
water runs clear at all faucets, signaling the RV
non-toxic antifreeze is ushed out of the lines. Go
back and recheck water clarity at all faucets�
7� Turn off the water pump�
8� Hook up city water, open faucet valves, and
recheck water clarity�
Toilet
Toilet Winterizing
Draining Method: Turn off touring coach’s water supply�
Drain toilet bowl� Disconnect supply line at water valve�
Completely drain the toilet’s water supply line�
Antifreeze Method: Use RV, non-toxic antifreeze only�
NOTE
To avoid damage when using air pressure to blow
water from the lines, make sure the toilet valve is in
the open position.
NOTE
If water is frozen in the toilet, do not attempt to
ush until the ice thaws. Never use automotive
type antifreeze.
Maintenance
If the bowl-sealing blade does not operate freely after
extended use, it may be restored to its original, smooth
operating condition by applying a light lm of silicone
spray to the blade� To clean the toilet use Thetford
Aqua Bowl or any other high grade, non-abrasive
cleaner� Do not use highly concentrated or high acid
content household cleaners� They may damage the
rubber seals�
Troubleshooting
1� Leaks:
a� Back of toilet: check water supply line connec-
tion at water valve� Secure or tighten as neces-
sary� If leak persists from water valve, replace�
b� Vacuum breaker leaks while ushing: replace
vacuum breaker or water module, depending
on model�
c� Between closet ange and toilet: check ange
nuts for tightness� If leak continues, remove
toilet and check ange height. Use Thetford
spacers to adjust, if necessary, to 7/16-in�
above oor. Replace ange seal.
2� Toilet won’t hold water:
a� Check for and remove any debris from blade-
ball seal track�
b� Check blade/ball seal compression mecha-
nism� If blade/ball seal is worn, replace�
3� Harder than normal pedal operation: Apply light
lm of Thetford Toilet Seal Lubricant & Conditioner
or silicone spray to blade/ball� (Note: To avoid
damage, do not use spray lubricants other than
silicone�)
4� Poor ush: The pedal must be held completely
down to ush. A good ush should be obtained
within 2 to 3 seconds� If problem persists, remove
the water supply line and check ow rate.
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