Guide :Camping, Backpacking & Hiking : Porta Potti

Flushing knob on a C2 Theford cassette porta potti hard to turn

The large knob on my C2 Thetford cassette porta potti has become almost imposible to turn when emptying the bowl for flushing. When it does turn it goes suddenly.

Research, Knowledge and Information :

Thetford Cassette Toilet Systems

Thetford Cassette Toilet ... toilets as standard equipment on all of their hard-side and most of ... cassette tank by the upper handle, and turn the entire tank ...
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Caravan & Motorhome Technical Questions | Leisureshopdirect

Caravan & motorhome technical questions. ... position so the mechanism seems ok. the oblong knob on the cassette is very hard to turn, ... for a porta potti ...
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Suggested Questions And Answer :

Flushing knob on a C2 Theford cassette porta potti hard to turn

Hi! Spray blade which closes holding tank with silicone spray. Make sure spray goes under lip of sealing ring. Also spray around holding tank actuator knob allowing to penetrate underneath to shaft. Don't use a silicone grease as this will gum up the works. If you can't get hold of a light silicone spray try using household type silicone polish intended for furniture. Wipe off any surplus as only thin film required.John Long
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Repairs to porta potti

Go to and download user instructions.
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