Jayco Canterbury

Thetford Duo Tank Cleaner Concentrated 800ml


Clean up your tank with the Thetford Duo Tank Cleaner Concentrated.

Thetford Duo Tank Cleaner Concentrated is a small but powerful bottle of periodical cleaner that provides thorough cleaning for both waste-holding and grey water tanks in your RV. With its high-performing formula, you don't need to scrub, as it removes encrusting, grease deposits, built-up scale, and unpleasant odors. Its citrus scent leaves your RV smelling fresh and clean.

Features and Benefits 

  • Small bottle of concentrated periodical cleaner
  • Suitable for waste-holding tanks 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 tanks
  • Extends the tanks lifespan
  • Use 2 to 3 times a year
  • Scent: Citrus


How to use:

  • Waste-Holding Tank: First pour 200ml into the empty tank. Next add 5L of lukewarm water and then vigorously shake the tank.

  • Grey Water Tank: First pour 600ml into the empty tank via the sink or shower drain. Next add in 50L of lukewarm water. Drive your RV for at least 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.


Keep your RV tanks clean and fresh with Thetford Duo Tank Cleaner Concentrated.

Frequently asked question

If we have your products available in store, you may choose Local Pickup at checkout and come collect your order from our Christchurch store. We are based at 545 Wairakei Rd.

Local Pickup orders are typically available within 24 hours.

When your order is ready to be picked up, we will send you an email letting you know. Please bring your order confirmation email when you come to collect your purchase.

If you order delivery, your item/s will be shipped directly to your chosen address.

We ship orders from both Auckland and Christchurch. If you order multiple items for delivery they may ship separately.