Yes, waste tank treatment liquid for the toilet of the self-contained campervans is provided. This liquefies waste and breaks down tissue fast. It can be used and works in all weather conditions. This toilet fluid is 100% biodegradable and environmentally safe when disposed of properly.
You'll find the bottle in the glove compartment of the dashboard, on the passenger's side, or in the toilet (open the lid of the toilet to see the bottle).