Thetford Duo Tank Cleaner Concentrated – 800 ml Citrus Cleaner for Waste & Grey Water Tanks

Refresh your caravan’s sanitation system with Thetford Duo Tank Cleaner Concentrated. This powerful and compact cleaner effortlessly removes limescale, grease, and residue from your waste-holding and grey water tanks—no scrubbing required. Just drive, soak, and flush!

Key Features & Specifications:

• Dual-Tank Cleaning Power

  Crafted to thoroughly clean both waste-holding and grey water tanks, extending service life and maintaining tank hygiene. 

• Effortless Maintenance

  Formulated to dissolve scale, encrusting, and grease without requiring manual scrubbing. 

• • For waste-holding tanks: add 200 ml to an empty tank, then 5 L lukewarm water—shake and leave for ≥16 hrs

  • For grey water tanks: use 600 ml with 50 L lukewarm water via drain—drive to agitate mix and leave for ≥16 hrs 

    Specific Dosing Instructions

     

• Compact & Concentrated

  The 800 ml bottle provides multiple deep cleans in a small package, saving space and previous hassle. 

• Citrus Fresh Scent

  Leaves a subtle citrus fragrance while working to eliminate odours. 

• Recommended Use

  Best used 2–3 times per year for optimal tank performance and longevity.