Description
Thetford Aqua Kem Green Concentrate – Waste Cassette Tank Additive – 750 ml – Septic Safe 30645ZK
Thetford toilet additives have been a trusted choice in the recreational vehicle industry for many years. Now enhanced with a 2x concentrated formula, the new Aqua Kem Green Concentrate offers the same high quality while saving space and weight in your van, boat, or camping setup.
Aqua Kem Green is a septic safe waste-holding tank toilet additive that uses biological action to stimulate the breakdown of solid waste and toilet paper, delivering exceptional odour control. Its eco-friendly formula makes it ideal for use in septic systems and pit toilets, perfect for boating, camping, and recreational use.
Features
- Assists in breaking down solids naturally and environmentally friendly
- Child-proof cap for safety
- Plastic bottle with clear measuring marks for accurate dosing
- Do not exceed recommended dose to avoid issues
- Comes with a 1-year warranty
Specifications
| Model | 30645ZK |
| Other Identifiers | T30645ZK, 850-01035 |
| Volume | 750 ml bottle |
| Dose | 75 ml per 20 litre cassette (approx. 10 doses) |
| Septic Safe | Yes |
| Duration | Lasts 3-4 days per dose |
Usage Tips & Additional Information
For best results, use the recommended dose of 75 ml per 20 litre waste cassette tank. Overdosing can lead to foaming and less effective waste breakdown. The additive is designed to last between 3 to 4 days, depending on usage and temperature.
This additive is perfect for boats with onboard toilets, campers, caravans, and any setup using waste holding tanks or septic systems. Its concentrated formula saves space and reduces weight while maintaining powerful performance.
Warning: Always keep out of reach of children. Do not ingest. Use only as directed.
Boat Hut Insight
While Thetford Aqua Kem Green Concentrate is formulated for convenience and environmental safety, a smart move is always to carry a spare bottle on longer trips. Nothing spoils a voyage faster than a smelly holding tank! Also, consider the ambient temperature—biological additives work best in moderate climates, so if you’re heading to colder regions by boat or camping site, allow a bit more time for waste breakdown or increase ventilation to minimize odours.
Pro tip: Using biodegradable toilet paper can enhance the breakdown process when paired with this additive, reducing clogs and maintenance effort.


