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Gipsy Caravans

Thetford Duo Tank Cleaner Concentrate 800ml

Thetford Duo Tank Cleaner Concentrate 800ml

Regular price $22.00 NZD
Regular price Sale price $22.00 NZD
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This concentrated cleaner provides thorough cleaning for cassettes and grey water tanks. There is no need to scrub as the high performing formula does the work for you. The formula tackles encrusting, grease deposits, built up scale and unpleasant odours. Keeping your tank fresh and clean is an effective way to prolong it's life. The 800ml capacity allows for one dose for each tank, 200ml for the cassette and 600ml for the grey water. Perfect for periodical use, it is recommended to use this treatment 2-3 times a year.


Cassette tank: Pour 200ml into the empty tank. Add 5L of luke warm water and then vigorously shake the tank.

Grey water tank: Pour 600ml into the empty tank via the sink or shower drain. Add 50L of luke warm water. Drive your RV for atleast 1 hour to mix the solution up and cover all surfaces of the tank.

For both tanks: For a thorough clean, empty after at least 16 hours at a designated location.


  • Small bottle of concentrated periodical cleaner
  • Suitable for cassettes and grey water tanks
  • Removes encrusting, grease deposits and scale
  • Eliminates odours
  • Keeps tank clean and fresh for longer
  • No scrubbing required
  • Cleans technical parts inside the tank
  • Extends the tanks lifespan
  • Convenient small bottle
  • Perfect for periodical use, use 2-3 time a year
  • Scent: Citrus
  • Dosage cassette: 200ml
  • Dosage grey tank: 600ml
  • Volume: 800ml
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