Airstream Interstate 2020 - Maintenance; Removal; Toilet; Toilet Winterizing

Maintenance
9-16 2020 Interstate
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 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.
Removal
1� Shut off water valve behind toilet or main water
supply and ush toilet.
2� Disconnect water supply line from toilet� You will
probably nd a small mirror very useful.
3� Remove mounting nuts�
4� Cover riser or tank inlet with cardboard to prevent
debris from falling into tank�
NOTE
Always replace ange seal when toilet has been
removed.
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 or hand lever 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: Pedals or hand levers must be held
fully open during ush. A good ush should be
obtained within 2 to 3 seconds� If problem persists,
remove the water supply line and check ow rate.
The ow rate should be at least 10 qt (9.5 L) per
minute�