Here you will find short and clear answers to frequently asked questions.
Using a TROBOLO differs little from using a conventional toilet. The sitting position is identical to that of a regular toilet – this applies to both men and women. Thanks to the contact-free separation system the body only touches the toilet seat. Merely urinating while standing should be avoided as the urine cannot be fully separated in this case.
The main difference between a TROBOLOcomposting toilet and a regular toilet is the lack of a water flush. As a result, a TROBOLO doesn’t require any connection to the sewage system. The integrated separation system separates the urine from the solid faeces and thereby prevents the mixing of excretions.
The separation is made possible by an integrated separator made of durable plastic. This separator directs the urine via the front part of the toilet opening into the liquids container or into an external tank. The solid faeces and toilet paper end up in the container for solids via the rear of the toilet opening. The separation system is adapted to the human anatomy so that any physical contact is avoided.
By separating the excretions, odours are reduced to a minimum and the subsequent disposal of toilet waste is made easier. Unpleasant odours arise only when urine and faeces are combined which is why it is possible to do without toilet chemicals that are harmful to the environment.
Since unpleasant odours only develop when faeces come into contact with urine, the TROBOLO separation system prevents a mixing of the excretions. Remaining odours and any arising moisture are also absorbed by litter which is not required in a TROBOLO with an electric exhaust system.
The electric exhaust system permanently generates a slight vacuum and thereby directs moisture and remaining odours outside via an exhaust air pipe. It can be flexibly connected via USB connection (12V, 24V or 230V) and has an extremely low power consumption, which equates to an annual power consumption of less than 6 euros at a continuous use. The max. current is 0.26 A, the max. power consumption 1.3 W and the noise level 19.3 dB. The additional use of litter is not required.
The natural exhaust system makes use of the chimney effect. Due to this natural effect the warm air rises and is extracted outwards via an exhaust duct. That way, moisture and remaining odours are led out of the toilet and as a consequence unpleasant odours are neutralized. No electrical energy is needed for this.
Litter consists of compostable and absorbent materials such as wood shavings. With the help of a small container, approximately 250ml of litter is placed in the back of the toilet opening after every defecation, where it covers the faeces and the used toilet paper and absorbs moisture and any remaining odours. The litter is only necessary with TROBOLO composting toilets that do not have an electrical exhaust system.
If you happen to have wood waste products like sawdust at home due to DIY projects, you can simply use these as an alternative to the litter or add them to your existing TROBOLO litter. You should only make sure that the sawdust is neither too fine nor too coarse. For this, you can use the consistency of our TROBOLO litter as a guide.
Dispose of used toilet paper as usual by placing it in the rear part of the toilet opening where it covers the solid excretions and is later composted to humus or disposed of.
The use of special toilet paper is not required. Since toilet paper is made of pulp, it is biodegradable and can be composted together with the other toilet waste.
The length of the intervals between emptying varies among the different TROBOLO models and you can read up on these in the features section under ‘Capacity’.
All TROBOLO models can be conveniently opened from above to remove the two separate containers located inside. After opening the TROBOLO, the inside containers are sealed tightly with the help of the closures through a simple pressing or screw mechanism, which renders them air- and liquid-tight. The final step is to remove the containers which can then be transported to the emptying location.
The TROBOLO separation system allows for a decentralised disposal of toilet waste on your own property. The urine can be diluted with water to be used as organic fertiliser in the garden. The solids container can be emptied in a composter where the contents are composted correctly together with the biodegradable inlay and other garden waste. If the requirements for proper composting aren’t given, it is possible to dispose of the toilet waste via your regular household waste, just like you would do with used nappies, and you can empty the liquids container via a toilet that is connected to the sewage system.
For the correct composting of toilet waste, it is recommended to use a closed composter. This prevents unpleasant odours during the composting process and the intrusion of excessive rainwater, which turns into black water when it comes into contact with not yet composted material and should not seep away into the ground. Commercially available hot composters usually fulfil these requirements. You can also find composters specially designed for this purpose in our online shop.
During the composting of toilet waste, these quickly lose their volume and can no longer be recognised as such within a few weeks. To make sure that all substances that might possibly be unhygienic are eliminated, a composting period over 24 months is recommended. The finished humus can be used in your garden as organic fertiliser for ornamental flowerbeds.
Yes. A TROBOLO is designed so that the user only comes into contact with the toilet seat, just like with a conventional toilet.
The containers are air- and liquid-tight, so a spillage is not possible and they can be carried over long distances without any issues. Since the excretions only come into contact with plastic surfaces, the cleaning is also hygienic.
The cleaning effort for our composting toilets is generally less than for a conventional toilet. For example, you don’t even need a toilet brush, as the solid waste falls directly into the solids container provided, which is positioned below the large opening of the divider. Even if you suffer from diarrhoea, the waste only comes into contact with the replaceable inlay in the container, protecting it from contamination.
The urine container also does not require any elaborate cleaning procedure. You simply wash it out after each emptying with a little warm water and at best a dash of vinegar or biological cleaner – et voilà.
If the body of your TROBOLO also needs cleaning, you can do this with confidence. The surfaces of our wooden models are impregnated with a natural oil and can be cleaned with a damp cloth, just like the wooden toilet seat, which is sealed with an antibacterial protective coating. The body of the TROBOLO WandaGO can be cleaned in all corners and ends, as you like without hesitation, because it is made of polypropylene.
After each emptying, the solids container is fitted with a new inlay, which is inserted into the container similar to a bag. This prevents contamination and thus time-consuming cleaning.
The liquids container should be rinsed out after each emptying with warm water and a dash of vinegar, lemon cleaner or – at best ecological – detergent. If you also pour a dash of vinegar into the container every now and then, this not only neutralises odours but also prevents urine particles from sticking to the walls of the container. Consequently, time-consuming cleaning is not necessary here either.
Due to the municipal decision-making authorities, there is no extensive uniform regulation. Regionally, chemical toilets or classic ‘outhouses’ are often prohibited; composting toilets like our TROBOLO are generally permitted.
Even if every municipality has its own regulations regarding the lawful water procedures, you can happily ignore these guidelines, because our TROBOLO composting toilets do not produce leachate or black water, both of which can lead to pollution of the groundwater.
Many of our customers already use our TROBOLO in their allotment garden, without this circumstance leading to any conflicts. To be on the safe side, you can ask your gardening association which controls the disposal of faeces and sewage in its garden regulations and and which can give you more information about this.
A building permit is generally not necessary and has not yet been required by any of our customers. You can acquire binding information and a confirmation from your local planning authority.
The 10 litre volume in our wooden models offers the best compromise between capacity, space requirements and handling. The same applies to the 4.6 litre collection container in our TROBOLO WandaGO.
At first glance, it may seem more convenient to use a larger container to extend the service life. But experience has shown that this would only bring a number of other obstacles.
After all, emptying a larger container also entails a greater weight burden. Which not everyone may be able to take on. In addition, a larger container would not fit in our models, which would mean either a complicated installation of the container outside the body of the composting toilet or building a larger body, which in turn would be difficult to stow away.
Technically, anywhere. Depending on the place of installation, there are different TROBOLO models for indoor and outdoor use, e.g. for gardens, houses and tiny houses, campers and vans, and institutions. A TROBOLO works completely self-sufficient and offers high comfort even in very remote locations.
If you decide for a TROBOLO with electric exhaust system, you will need a power source. If no power connection is available, you can use a power bank or a solar module for self-sufficient use. Models without an electric exhaust system do not need any electricity at all.
The ongoing expenses are limited exclusively to the use of inlays and litter. The latter is not needed for TROBOLO models with an electric exhaust system. Instead, electricity costs arise which amount to less than 6 euros per year.
No. Thanks to the black solids container, the incidence of light is minimal and as the toilet paper always gets added last, there is no direct view of the faeces. Thus, the view is limited to the toilet paper and if you’re using litter, which would be added after the toilet paper, you’d only be seeing this.
The design of the TROBOLO system ensures that nothing can be spilt and that it still works if the urine is not separated entirely. If the urine isn’t diverted correctly by the separator, it simply flows into the solids container where, in small quantities, it causes no disadvantage.
Using a TROBOLO during your menstrual period is not an issue at all. Menstruation-related stains on the surfaces can be cleaned wet, just as any other stains. Regarding disposal / composting the amounts of blood caused by menstruation are negligible. Pads and similar objects shouldn’t be thrown in the containers, if you are planning to compost.
In principle, a TROBOLO can also be used with a higher body weight without any problems. The tested loads of the various TROBOLO models differ and range between 180 – 220kg for the wooden models and 150kg for the TROBOLO WandaGO. You can find the exact details in the respective product description.
The TROBOLO system is basically designed for year-round operation. It is free of hoses or other mechanical parts that could be affected by frost. And the accessories, such as the containers, are also designed for use in winter temperatures.
If you use the TROBOLO KersaBœm or TROBOLO KitaBœm outdoors, we recommend painting the inside and outside with a wood protection paint. In this way, you counteract changes to the wood caused by weathering.
Unlike our wooden models, the TROBOLO WandaGO is made of 100% weatherproof material and can therefore be used outdoors all year round without hesitation.
No matter which model is used to collect the urine, it will not freeze until well below the freezing point. Nevertheless, we recommend emptying the containers more frequently at temperatures below zero degrees.
The spill stop prevents urine from spilling out of the liquids container during transport. This means you can use your TROBOLO safely on the road, while the spill stop acts as an effective barrier against spilling liquids. The spill stop is accurately connected to the filter screen of the separator and thus integrated into the separation system of your TROBOLO.
“For indoor and mobile use, we have developed a composting toilet apart from our all-in-one system that comes to your home as a prefabricated kit: the TROBOLO TeraBlœm. It is suitable for mobile use, for example in motor homes or even in smaller camping vans, and comes with everything you need for easy assembly.
If you prefer it even more compact and lighter, the TROBOLO WandaGO is the right choice for your mobile use. Although it cannot be dismantled, it is ultra-compact and can still be extended to a regular toilet height thanks to its stacking function.”
To prevent the solids container of your TROBOLO composting toilet from coming into direct contact with waste, it is covered with an inlay. This allows you to easily and hygienically remove and dispose of the toilet waste including the inlay.
If you plan to compost your toilet waste, we recommend our compostable inlays made from 100% degradable corn starch. Otherwise, our recycled plastic inlays are ideal. You can dispose of them in your household waste, just like used nappies.
The advantage of our inlays being compostable is their composition of degradable cornstarch. However, this inevitably results in less durability which is why we recommend a weekly change of the inlay.
The separator is made of 100% recyclable polypropylene.
We see the greatest advantages in plastic compared to other materials, even though it is known that plastic has certain disadvantages if it is not used responsibly. The plastic polypropylene is durable and robust with correspondingly high-quality production processes and thus fulfils our demand for a conscious use of resources.
In addition, plastic has the advantage over other materials that it is particularly light, weather-resistant and comparatively inexpensive to manufacture. This is the only way we can sell TROBOLO WandaGO, for example, at an unbeatable price while maintaining the same high quality. Another advantage: the plastic used for our containers is 100% recyclable once it has reached the end of its service life, thus closing the recycling loop.
Experience has shown that a larger container would involve major disadvantages when it comes to its emptying. For models with external urine drainage, for example our TROBOLO TinyBlœm and TROBOLO BilaBlœm, the number of uses in terms of liquid excreta depends on the size of your external tank. Alternatively, with our TROBOLO KersaBœm, it is possible to place additional interchangeable containers into the interior of the composting toilet in addition to the two solids and liquids containers that are already included in the scope of delivery. This way, either four further liquids containers or an additional solids and two extra liquids containers could then be provided. The compartment that would normally contain the litter could then be used as a storage space for these.
A daylight roof made of polycarbonate is used. It consists of 6mm thick double-skin sheets which are weather-, hail- and scratch-resistant.
We consciously avoid the installation of a visual protection in our composting toilets as this is a mechanical component that could possibly lead to faults and additional cleaning which we don’t want to burden our customers with.
For instance, a visual protection screen doesn’t function in an unobstructed way as soon as someone using the toilet sits down on it with their full body weight – which would be the prerequisite for the complete opening of the screen, and which would then inevitably lead to the soiling thereof.
What’s more, the last step in the use of ourcomposting toilets with an electric exhaust system is the addition of used toilet paper. Thus, if you look directly into the opening, you will see precisely this (the toilet paper) and not the faeces of the previous user.
When using our composting toilets without an electric exhaust system, litter is also added to the used toilet paper. In this case, when looking into the opening, only the litter and possibly some toilet paper are visible as opposed to your own excretions or that of other users.
Should you have any remaining concerns about aesthetics, then adding more litter may solve this. However, we expect that this is not necessary.
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