Special double base
Green Toilet separates urine from solid waste with a unique double base inside the container. Thanks to the double base, the Green Toilet is completely odorless and pleasant to use.
Product description
Green Toilet 120 Family is a waterless, odorless composting toilet, which is easy to use and service. It is an excellent choice for a holiday home and it can easily be installed to old outhouse as well.
- efficient composting ability
- serviced in minutes, no shoveling
- endless capacity with spare containers
- handy size, easy to move with wheels and sturdy handles
- durable and reliable in use
- no need for special instructions for users
Green Toilet 120 Family, GT 330, and GT Lux are now made from black recycled material – the dimensions, functionality, and price remain completely unchanged.
Green Toilet is an ecological composting dry toilet designed and manufactured in Finland. Green Toilet operates with any water or electricity and is therefore an ideal solution anywhere where there is no drainage or water available.
OPERATING PRINCIPLE
Inside the Green Toilet container, there is a special double base, which separates the urine from the solid waste making the toilet completely odorless and pleasant to use. The special capillary bottom allows some of the urine to be absorbed back to the composting solid waste, just like in underwatering flowerpots. This unique feature of the Green Toilet speeds up the composting process significantly. Efficient composting requires suitable moisture: the mass inside the container should not be too wet or too dry.
The excess liquid, ie. the seap liquid is led through a hose from the bottom of the container to a canister. Alternatively, the seap liquid can be filtered with a GeoTrap Dry Toilet Filter.
The use and the service of the Green Toilet is based on batch composting: when the composting container in use gets full, it is pulled out of the toilet by wheels and a spare container is taken into use. The full container is closed with a lid and it is left to decompose until the next service. Thus, one does not have to shovel or handle raw toilet waste in any way.
The third important feature is the ventilation pipe, which ensures that the air flows from the toilet seat and composting container outwards and no unpleasant odor is let into toilet in any circumstances. The ventilation also boosts the evaporation of liquid – especially at warm weather.
For more information, please watch Green Toilet presentation video.
PACKAGE CONTENT
- composting container 120 liters
- wheels
- ventilation kit: ventilation pipe 100 cm 2 pcs, a flexible pipe 50 cm, a ventilation pipe cap, a joint and fixtures
- liquid hose 150 cm (extra liquid hose available; just add as many extra meters as you need)
- liquid canister 20 liters
- lid of the container and an adjustable waste shaft 30 cm
- thermal seat with fixtures
- plug for the seap liquid outlet
- bag of dry material
- manual for installation and use
Link to Green Toilet 120 measurements and package content.
SERVICE
When the Green Toilet container gets full and it is time for service, the flexible part of the ventilation pipe and the liquid hose are taken off. No tools are needed for this. After this, the container is pulled out with wheels.
If there is a Green Toilet spare container available, the bottom of the empty container is covered with dry material. The lid with the waste shaft is put on the empty container and put back to the toilet. The full container is covered with a closed lid and left to decompose until it is time for the next service.
COMMON USE CASES
Green Toilet is excellent for family use in holiday homes and cottages both indoors and in traditional outhouses. In seasonal use, Green Toilet 120 serves 4-6 people and usually one spare container is enough. Spare containers can be acquired separately according to the need. Thus, Green Toilet 120 can serve also in continuous use in permanent houses.
WARRANTY
All Green Toilet dry toilets come with a 10-year frame/structure warranty.
OPTIONS AND ACCESSORIES
- Green Toilet 330 is the larger version, which is suitable when there are more users, to public sites or whenever long service intervals are important
- Green Toilet LUX is a composting dry toilet with a porcelain pedestal for indoor use
- Green Toilet 120 Family spare container
- Wind driven ventilator to boost the ventilation
- GeoTrap Dry Toilet Filter
- Biodegrader
FAQ - Frequently asked questions
How does the usage capacity differ between different Green Toilet models?
- Green Toilet Easy: approx. 200 uses (solid waste) before container exchange
- Green Toilet 330: approx. 800 uses (solid waste) before container exchange
- Green Toilet 120 Family: approx. 250 uses (solid waste) before container exchange
What factors affect the composting process?
✅ Usage frequency – Composting takes time. If the toilet is used frequently without enough time for decomposition, the container will fill up faster.
✅ Temperature – Composting is faster in summer, while in winter, the process slows down or may even stop.
✅ Ventilation – Proper airflow speeds up decomposition and reduces odor issues.
✅ Container size
• A larger container retains heat better and enhances decomposition since more energy and microbes accumulate in the compost mass.
• A bigger container holds more waste, extending the emptying interval.
✅ Use of cover material – Cover material absorbs moisture, improves compost structure, and accelerates decomposition.
✅ Urine separation – Affects moisture balance: drier compost breaks down more efficiently.
How should excess liquid (leachate) from a composting toilet be handled?
Using a composting toilet typically generates some excess liquid known as leachate. This liquid is usually collected in a separate canister. While it contains valuable nutrients and can be considered an eco-friendly fertilizer, it may also include fecal bacteria and should therefore not be used directly on edible plants.
To reduce the bacterial content, the leachate can be stored in a sealed container for at least a year — for example, frozen over winter — which significantly lowers the risk.
Untreated leachate can be safely used as fertilizer for non-edible plants, such as ornamental shrubs and trees. It’s important to ensure that the application site is at least 30 meters (about 100 feet) away from any water sources, such as wells, ditches, ponds, or shorelines. Rotate the application area each time to avoid nutrient buildup and make the most of recycling nutrients on your own property.
Technical details
| Feature | Width | Depth | Height |
|---|---|---|---|
| Size | 60 cm | 60 cm | 70 cm |
| Weight of the package | 24 kg | ||
| Liquid hose | yes (included) | 150 cm | diam 32 mm |
| Ventilation pipe | yes (included) | 200 cm + 50 cm flex.pipe | diam 110 mm |
Manuals and files
Adjusting waste shaft
The Green Toilet has vertically adjusting waste shaft (0-30 cm) so that it fits all outhouse structures below the toilet seat no matter what the height is.
Just the right size
Green Toilet 120 Family has been designed to have enough capacity for three to five month family-use. Hence the maintenance interval is not too short nor is the size of the container too big or heavy. Anyone can move it around and do the maintenance when necessary.
Adjustable height: 70-100 cm, width: 60 cm, depth: 60 cm.
Spare container is great!
There is also a spare container available for the Green Toilet. The spare container enables continuous use of the toilet. As the former Green Toilet container fills up, there is a spare container that can be put into use immediately. The filled up container can be set aside for further composting process for example in garden.
The spare container is sold separately.
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Package Green Toilet 120 Family composting toilet with spare container