Thetford Concentrated Duo Tank Cleaner

Duo Tank Cleaner Concentrated is a powerful, concentrated, periodical use cleaner for the waste-holding tank and grey water tank.

Concentrated yet powerful, this cleaner helps to prolong the lifespan of your waste-holding and grey water tank. With no scrubbing required, you can clean without damaging any technical parts inside the tanks while removing lime scale, grease deposits and encrusting.

Graywater is the untreated water from your onboard sinks, showers, washing machine, dishwasher and the wastewater from cleaning your boat with detergents, soaps and bleaches.

Thanks to its concentrated formula the cleaner is long lasting. You will only need to use this periodically for a long clean and fresh life of both waste holding and water tanks.

Designed for periodic application, typically recommended two to three times a year, this cleaner serves as an excellent safeguard to extend the lifespan of your tanks and carriers.

Its concentrated formulation is best utilized in your waste-holding tank, effectively targeting and removing grease and limescale from both the tank's technical components and its interior surfaces.

For a long, clean, and fresh life of both tanks. Pairing Duo Tank Cleaner Concentrated with Greywater Fresh Concentrated is the best way to keep your waste-holding tank and greywater tank clean and fresh for a long time.

Duo Tank Cleaner Concentrated will remove the tough deposits that build up over time, while Greywater Fresh Concentrated will help to prevent new deposits from forming.

Product Use

Use in the waste holding-tank

1. Add 200ml to the empty tank 
2. Add 5L of luke warm water
3. Shake tank vigorously.

Use in the grey water tank

1. Add 600ml to the empty tank via the sink or shower drain.
2. Add 50L of luke warm water.
3. Drive with your RV for at least 1h, in order to cover all surfaces of the tank.

For both tanks

1. Empty after at least 16 hours at a designated location.

Technical Characteristics

• Package: 800ml
• Color: Blue
• Scent: Citrus
• Removes limescale, encrusting, and grease deposits
• No scrubbing is required
• Technical parts inside the tanks are cleaned as well
• Prolongs the lifespan of the tanks