Waste Holding Tank
To keep your Waste Holding Tank fresh and
clean, Thetford has developed a number of
different toilet uids. Thetford toilet uids
suppress smells, reduce formation of gas,
promote breakdown of toilet waste and
increase the life span of a mobile toilet. We
advise a thorough cleaning of the Waste
Holding Tank once each season.
Next to using the Thetford’s Cassette Tank
Cleaner, which is the powerful cleaning agent
for the periodical cleaning of the waste Holding
Tank of your toilet we suggest the following.
• Remove the removable mechanism from
the Waste Holding Tank by turning it anti-
clockwise and rinse it under a tap.
• Remove the cover plate from the Automatic
Pressure Release Vent by prising it up using
a small screwdriver. Use one hand to push
the Automatic Pressure Release Vent open
while holding the oat of the Automatic
Pressure Release Vent on the inside of the
tank with the other hand. Push the oat
upwards, turn it 180 degrees and remove
it from below. Remove the rubber seal
underneath the oat. Rinse the oat and
rubber seal under a tap. Replace the rubber
seal and oat for the Automatic Pressure
Release Vent using the same method in
reverse. The rubber seals in the toilet (the
lip seal, the mechanism seal, the automatic
pressure release vent seal and the cap seal)
should be regularly cleaned with water
and treated with Thetford High Grade Seal
Lubricant. This will ensure that the seals
remain exible and in good condition. If the
toilet is not to be used for any length of
time, it is important to treat the seals with
Thetford High Grade Seal Lubricant after
cleaning.
Never use Vaseline or any vegetable oil
except olive oil. These may cause leakage
or malfunction. The lip seal is a part of the
toilet that is subject to wear. Depending upon
the extent and manner of use, the seals will
become less effective and will need replacing
periodically.
Winter operation
You can use your Thetford Cassette Toilet as
normal in cold weather as long as the toilet is
situated in a heated location. If there is a risk of
freezing we advise that the toilet is drained by
following the instructions under ‘Storage’. For
environmental reasons the use of antifreeze,
such as that used in car radiators, is not
recommended.
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