Why have a toilet in the garden?
Having a toilet in your garden means more time for the things that matter – planting, relaxing, or simply enjoying your little paradise. You no longer have to leave every time nature calls or walk long distances to the shared facilities. Instead, you have your own private toilet right in your plot – clean, comfortable, and always available. It turns your garden into a place where you can truly feel at home –independent, relaxed, and completely private.
But why Trelino®?
Completely waterless
Trelino® works without any water to give you the most independence wherever you are. No flushing, no connections, no wasting precious resources. Just set it up and go.
Did you know?
Trelino® works anywhere
With Trelino, you have a closed, waterless system that works anywhere – no installation, no wastewater, no hassle. Perfect for any place where wastewater is not allowed.
No chemicals
Trelino® composting toilets rely on a simple function: the separation of solids and liquids by a built-in divider. Solids are then covered with litter to minimise odours without the need for chemicals.
Odour-free & hygienic
Thanks to the separation of liquids and solids and the drying of the latter, the toilet remains odourless. It's hygienic, clean – and essential for your garden.
Easy to empty & clean
The liquid and solid containers can be emptied separately and effortlessly. Smooth surfaces without corners or edges make cleaning quick and easy using eco-friendly household cleaners.
Your first step towards real composting
Trelino® separates, dries, and prepares – for a clean, sustainable composting process.
- Small amounts, emptied regularly – ideal for the home compost heap.
- Closes the loop: Your waste becomes fertile soil – right where it’s needed. Diluted urine can become great fertalizer.
At Trelino® we care
Our accessories are made for nature lovers – sustainable wood fiber litter and natural additives with effective microorganisms.
What our customers really love
Trelino Step-by-Step Guide
An integrated separator in the seat funnels liquids into the urine canister, while solids fall into a separate container. Solids are covered with litter to absorb moisture and lock in odours. The simple principle: separate, dry, done.
Why gardeners choose Trelino®
Trelino® follows a simple, natural principle: separation instead of chemicals. Compared to traditional cassette toilets, you save water, avoid unpleasant smells and long queues at disposal stations – and gain more freedom and independence.
| Features | Trelino | Cassette Toilet | Soakaway |
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| Compact |
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| Mobile |
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| Odorless |
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| Eco-friendly |
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| Chemical-free |
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| Waterless |
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| Quick disposal |
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Our Toilet Series
Trelino® Evo
The Evo series combines comfort, design, and function in a super-light, easy-to-clean casing made from recyclable plastic. It also features a soft-close lid and an ergonomic seat. Its robust ABS housing makes it weather-resistant, so you can confidently use it outdoors. Each Trelino Evo is proudly manufactured in the Black Forest, Germany.
Trelino® Origin
The Origin series combines natural aesthetics with reliable functionality. Made from high-quality PE plastic, it’s sturdy, easy to clean, and built to last. The birch wood lid adds a warm, natural touch that fits perfectly into any garden setting. Each Trelino Origin is carefully crafted in Solingen, Germany.
Trelino® Timber
The Timber series brings the feeling of home to your garden. With its oiled wooden body, it looks and feels like a real piece of furniture – natural, warm, and beautifully crafted. Each Timber is handmade by a local carpenter in Korschenbroich, Germany, ensuring exceptional quality and attention to detail.
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Frequently Asked Questions
Yes! Because Trelino works completely without water or wastewater, it’s usually permitted where flushing toilets or soakaways are not. Always check your local garden association’s rules to be sure.
Absolutely. Trelino is the modern, eco-friendly alternative to old soakaways – clean, legal, and much more hygienic.
Yes, under the right conditions. Solids can be composted in a separate garden compost bin or dedicated composting area – a natural cycle that turns waste into nutrient-rich soil.
A dry separation toilet consists of a body, a lid and a toilet seat. Its inner parts include two containers and a urine separator. This separates liquid from solid and thus forms the heart of the toilet. The aim is to keep the big business as dry as possible.
For this purpose, the urine is diverted to the front into a canister. To prevent leakage and odors, the lid of the canister has a special membrane. The solid waste ends up in a separate container lined with a garbage bag. Here you can also throw the toilet paper.
To enhance the drying process, sprinkle the big business with bedding material after going to the toilet. Drying prevents the formation of bacteria, which are responsible for the usual odor. For emptying, you can remove both containers separately from each other.
Odors occur when solid and liquid waste mix. By separating the waste and then drying the solids, unpleasant smells can be minimized.
Suitable types of litter include: sawdust, small animal bedding, Terra Preta, coconut coir bricks, litter with activated charcoal, soil, and coffee grounds.
Urine can easily be disposed of via the regular wastewater system or used diluted as fertilizer. Solid waste belongs in the residual waste bin, though composting may be possible under certain conditions.
Cleaning a composting toilet is simple and can be done effectively using mild household agents such as diluted citric acid or vinegar. pH-neutral cleaners or those with effective microorganisms are also suitable. Harsh chemicals and abrasive tools should be avoided, as they can damage the material.