Whether you’re on the road or back home, the Duo Tank Cleaner Concentrated 800ml from Thetford is your secret super-power for making light work of a dirty job.

For periodical use in both your waste holding tank and your grey water tank, this cleaner removes crusty scale build-up and grease deposits. It has a fresh citrus fragrance and does the nitty-gritty thorough deep clean for you. Make sure your tank is empty before adding 200ml to 5 litres of water for a waste holding tank and 600ml to 50 litres of water for the grey water tank, via the sink or shower drain. Lukewarm water is best and give your waste holding tank a shake before going for a good drive to really mix up the solution so that it covers all surfaces inside the tanks. Leave it for at least 16 hours and voilà, the work is done and there’s no scrubbing brush in sight.

Ideal for RVs, caravans, and motorhomes, Thetford’s Duo Tank Cleaner Concentrated 800ml does all the hard work for you so you can look like the hero without busting your butt.

• Concentrated periodical cleaner
• Removes scale, encrusting and grease deposits
• No scrubbing required
• Use in waste-holding tank - 200ml with 5L lukewarm water
• Use in grey water tank – 600ml with 50L lukewarm water
• Works while you drive to your next destination
• Requires at least 16 hours for thorough clean
• Cleans technical parts inside tank
• Prolongs the lifespan of tanks
• Recommended use 2-3 times per year
• Citrus scent