BioTioo 1.0+ RL Special Edition
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BioTioo 2.0 RL-Motion (RL-M)
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BioTioo 2.0
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What is a composting toilet?
A composting toilet is a self-contained, chemical-free sanitation system that separates and collects solid and liquid waste. A molded separator in the seat directs urine into a sealed canister and solids into a separate container, either a biodegradable bag or a collection tank with an agitator.
The separation process prevents odors, as plant fibers act as odor absorbers. A composting toilet operates without electricity or water and is suitable for mobile applications such as campers, tiny houses, boats, and garden sheds.
What are the advantages of composting toilets?
Composting toilets enable independent, odor-free, and hygienic toilet use, entirely without a water or electricity connection. The following advantages make composting toilets particularly attractive for use in self-sufficient living and travel situations.
Both variants compared
BioTioo Basic
- Solid container with bag inside
- Covered with litter by hand after each use
- Dispose of solids after 5-8 uses, as they only dry superficially.
- Toilet paper can be placed in the solid waste bin.
- Urine tank (10 L) with odor trap
- Upgradeable to a composting toilet
BioTioo RL (with agitator and fan)
- Solid waste container with integrated composting function
- One-time filling with plant fibers before the holiday
- Solids dry out and begin to compost.
- Disposal of solids after 20–30 uses
- Toilet paper can be placed in the solid waste bin.
- Urine tank (10 L) with odor trap
- Maximum independence
User reviews: Does the composting toilet also work without problems for women?
Absolutely! Our composting toilet was designed with the female anatomy in mind when designing the bowl. The result: a unique seat that has already delighted thousands of women – whether tall or very short.
Variant with fan and agitator explained
- No unpleasant odors and infrequent disposal
- 100% chemical-free
- Easy disposal: complete independence from disposal stations
- Works perfectly without water
- No plastic bag is needed for using the composting toilet.
- Very light (6.5 kg)
Conclusion
Disposing of the solid waste from the composting toilet is as easy as filling a pot with dry potting soil – simple, clean and effortless.

Sustainable and award-winning: Our composting toilet received an award in 2021.
BioTioo received an award in 2021 – recognition that underlines our passion for sustainable and innovative solutions. Our goal is to offer you an environmentally friendly alternative that gives you independence and protects nature.
The comfort boost for your composting toilet: Ready-to-use plant fibers
Everything you need to know about composting toilets
Here you will find concise answers to the most frequently asked questions.
For further information or a personal consultation regarding your individual situation, you can reach us by phone at 07551 8344970 or by email at info@biotioo.com. You are also welcome to book a personal consultation with us directly.
Why doesn't a composting toilet smell?
Why doesn't a composting toilet smell?
Our BioTioo composting toilet remains permanently odor-free because it consistently separates liquid and solid waste.
Odors typically only arise when these two components mix. The urine flows into a separate collection container with an integrated odor trap that blocks rising gases, prevents condensation, and reduces evaporation. This system prevents the typical odor formation that often occurs in conventional portable toilets due to mixing. The solids are either covered with bedding material (basic version) or, in the compost version, mixed evenly with plant fibers by an agitator. This allows everything to dry quickly, natural decomposition to begin, and unpleasant odors have no chance. Simple, regular cleaning of the urine container ensures the long-term effectiveness of the odor trap – entirely without chemicals or external ventilation systems.
How do you properly dispose of a composting toilet?
How do you properly dispose of a composting toilet?
Disposing of the contents of the composting toilet is incredibly easy. The urine is collected in the urine tank and can be conveniently emptied at any standard toilet, such as those found at rest stops or motorway service areas. After a few uses, the solid waste can be easily and cleanly emptied into the regular trash. You don't even need to worry about the toilet paper – you can either dispose of it separately or, if it's biodegradable, simply throw it into the composting toilet along with the waste!
How do I use a composting toilet?
How do I use a composting toilet?
Using a composting toilet is straightforward. Urine is collected in a separate tank, while solid waste ends up in another container. For urination, the clever separation system ensures that the urine flows directly into the front tank without any effort on your part. This tank then needs to be emptied after a few days.
For solid waste, the solids are collected in the rear container. In the basic version, you cover the waste with some bedding (e.g., sawdust) after each use to prevent odors. The composting version features an agitator that mixes the solids with plant fibers, which speeds up drying and extends the emptying intervals.
The system requires no water at all, is easy to use and ideal for self-sufficient travel!
How often do I need to empty my toilet?
How often do I need to empty my toilet?
How often you need to empty the composting toilet depends on the type and how often it is used.
- Urine tank: The urine tank typically holds about 10 liters. For two people, it should be emptied every 2-3 days. Emptying it is simple and can be done in a normal toilet.
- Solids container (basic version): In the basic version, where the solids are collected in a bag and covered with litter, the container should be emptied after about 3-5 days, as drying only takes place on the surface.
- Solid waste bin (compost version): The compost version allows for longer emptying intervals because the solids are mixed with plant fibers by the agitator. You can usually empty the bin after about 20-30 uses. If you also throw toilet paper into the solid waste bin, it will fill up a bit faster, but you can still expect around 25 uses before emptying is necessary.
How do I clean the urine tank?
How do I clean the urine tank?
Cleaning the urine tank of your composting toilet is simple and straightforward. After emptying it into a regular toilet, you can rinse the tank with water and dish soap to clean it. For a more thorough cleaning, it's recommended to occasionally add a mixture of water and a little citric acid to the tank to prevent limescale buildup. You can let the mixture soak for a few hours, or overnight, and then simply rinse the tank.
Can I also buy accessories for the composting toilet in the shop?
Can I also buy accessories for the composting toilet in the shop?
Yes, in the BioTioo shop you will of course find suitable accessories for your composting toilet, precisely tailored to our systems. Our range of accessories includes everything you need for comfortable, odor-free and sustainable use of your composting toilet.
From odor-absorbing plant fibers in the FiberBox and coconut bricks for composting to refill packs and disposal bags. For technical upgrades, we offer fan kits, odor traps, lids for urine tanks, and solids containers with or without agitators. You can also customize the look of your BioTioo composting toilet with high-quality foil kits for self-installation or factory-applied foil.
How do I flush a composting toilet?
How do I flush a composting toilet?
Rinsing is very easy: Simply use one of the two spray bottles included as accessories. After use, just spray the urinal with a little water to clean it. If desired, you can add citric acid or vinegar essence to the water to prevent limescale buildup and provide extra freshness. One bottle is sufficient for approximately 10 uses and is refillable.
You can also use the spray bottle as a bidet, depending on your personal preference.

