Trobolo WandaGo and KoMa.land Kackbox top IMTEST toilet evaluation
Dry camping and tent trips often force travelers to rely on overloaded or unsanitary facilities, prompting a market shift toward portable separation toilets that manage waste without standard plumbing. In its recent evaluation of camper sanitation equipment, IMTEST reported that the Trobolo WandaGo secured the top ranking based on handling, comfort, and cleanup efficiency.
Key Clinical Takeaways:
- The Trobolo WandaGo achieved the highest overall score of 1.75 in the IMTEST evaluation, driven by its dual-height seating configuration and completely water-resistant build.
- Testing assessed other models—KoMa.land Kackbox, northbox expedition, Trelino Origin S, and Boxio Toilet Max+—with scores ranging from 1.75 to 2.20.
- IMTEST updated its evaluation framework for 2025 to combine standard testing performance with a price grade in a 95-to-5 ratio.
IMTEST evaluates separation toilet performance and design
IMTEST examined the equipment across categories including equipment, handling, and hygiene. Separation toilets operate by dividing urine and fecal matter into separate containers. Each unit houses a liquid canister beneath a specialized separator insert.
| Model | IMTEST Score | Key Advantage | Identified Drawback |
|---|---|---|---|
| Trobolo WandaGo | 1.75 | Water-resistant exterior, dual seating heights | Utilitarian and unappealing aesthetics |
| KoMa.land Kackbox | 1.75 | Lightweight at 3.5 kilograms, acid-resistant HDPP insert | Seat riser and roll holder sold separately |
| northbox expedition | 2.04 | Sturdy hinged box doubles as a stable seat | High retail price of 575 euros |
| Trelino Origin S | 2.17 | Compact design with magnetic lid closure | Untreated wood lid absorbs liquid drops |
| Boxio Toilet Max+ | 2.20 | Completely water-resistant plastic build |
Design Performance Across Tested Units
The Trobolo WandaGo earned its position as the top performer largely due to its water-impermeable plastic body, which allows the toilet to be stationed outside the camper. Users can remove the internal box, rotate it by 90 degrees, and place it atop the exterior housing to switch between two distinct seating heights—a feature designed for families traveling with children. The unit also features an integrated screw-cap valve on the liquid canister to prevent sloshing and contain odors during transit.
Sharing the top score of 1.75, the KoMa.land Kackbox weighs just 3.5 kilograms and utilizes HDPP, a material commonly found in chemical laboratories for its acid resistance and non-stick surface properties. The manufacturer says the model was developed by a woman for women, though it can be used by the whole family. The liquid canister is equipped with an odor-blocking membrane and an air-release valve. Meanwhile, the northbox expedition offers a 40-centimeter seating profile and a 10-liter fluid reservoir, though its pricing reaches 575 euros.
Lower down the scoring tier, the Trelino Origin S received a 2.17 rating, penalized for its low 26-centimeter seat height and an untreated wooden lid that can absorb stray moisture. The Boxio Toilet Max+ scored 2.20, utilizing plastic construction that makes it completely water-resistant for use outside the camper.
Frequently Asked Questions About Portable Sanitation Units
Why did the Trobolo WandaGo rank first in the testing?
The model secured the highest score due to its flexible dual-height configuration, weather-resistant construction that permits outdoor placement, and thoughtful accessory integration for waste bags and toilet paper.
How do separation toilets manage odor control without chemicals?
By routing urine and solid waste into separate containers beneath a specialized insert, the units inhibit the chemical reactions that generate unpleasant bathroom smells.
What changes were introduced in the 2025 testing methodology?
IMTEST adjusted its scoring system to incorporate a price grade, combining test performance with pricing data at a 95 percent to 5 percent ratio to determine the final score.
Disclaimer: The information provided in this article is for educational and scientific communication purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider regarding any medical condition, diagnosis, or treatment plan.