How to switch from camper toilet to a composting toilet – and why it´s worth it

The 6 top reasons to switch from the camper toilet to a composting toilet

Just think about it: you’re just standing comfortably in the most beautiful place in the world, enjoying the surroundings to the fullest – and again the camper toilet is full. 

As a foresighted person, you naturally have a second spare cassette with you. But after 5-6 days at the latest, packed with two full cassettes, you have to go to the disposal station. 

Far too often we have to leave wonderful places for the sake of disposal. If you are really honest – it is not worth it!

The disposal process of the camper toilet begins:

Gloves on. Close the nose and take out the cassette toilet. Mighty heavy such a cassette! 

The smell practically jumps on you and not only from the own cassette but also from the entire camper toilet disposal station. 

Sometimes one is lucky and there are two disposal places next to each other and another traveler completely thoughtlessly empties his cassette directly next door.

Empty it, watch out that nothing sprays, and then rinse out. While rinsing, you can also spray yourself, because the water pressure is sometimes very high. Lastly, the camper toilet is prepared again with chemistry and put into the caravan.

With a family of 3 people alone and one cassette this awaits you every 2-3 days. Have fun!

Let me show you why a waterless toilet is the better camper toilet!

1. Minimize disposal intervals when travelling in your caravan

With a composting toilet, you can extend the disposal intervals considerably. We are talking about 3 to 6 weeks. 

Here there is such a large time span since there are no standardized sizes with the solid material containers. Thus, the disposal intervals depend completely on the size of your container and the number of people using the Camper toilet. 

It is also no longer necessary to stand at the disposal areas. You dispose of your leftovers in the garbage. Remove bags from the separating toilet. Open garbage can, bag in, close garbage can – done!

You dispose of your urine in normal toilets or drains. The urine is also used diluted as fertilizer. In the horticultural themed area, there are innumerable contributions.

2. Simple disposal

In a waterless toilet, urine and solids are separated from each other. The solids are quickly dried by litter or a fan and are already pre-composted. 

The solids simply go into the garbage, as described above. As we already know it from diapers. But if you use compostable garbage bags, you are helping nature to recycle and everything can be returned naturally. 

Microorganisms and soil organisms are responsible for the decomposition. A very good alternative to disposal in the garbage is composting. If you have the possibility (private or community composting plants), I recommend this disposal option. 

I have already written an article about this, which I would like to refer you to. Here I will go into detail about the disposal possibilities of the solids.

Since the urine containers are quite compact, they are easy to handle and transport. Therefore, you can dispose of them easily in any toilet or manhole, unlike with a chemical toilet. No one is bothered by this.

3. Water saving of the camper toilet

In a dry toilet, no water is used at all. Usually, the remains of a normal toilet are flushed with drinking water and finally led into the sewerage system – even in the case of cassette toilets. 

This is followed by an elaborate cleaning process in our sewage treatment plants. Since you discharge a maximum of urine into the sewage system, you make the sewage treatment system easier. 

In this way, you make your personal contribution to improving the environment.

4. No more disgusting stuff anymore

Meanwhile, there are countless long-term reports from composting toilet users. All of them report about the “pleasant” smell of the solids. 

It smells of humus, earth, fresh forest soil, or meadow, depending on the bedding used. By the way, I have already collected some bedding information – here!

You don’t have any fecal liquid here anymore, with which you could splash yourself like in a normal camper toilet when disposing of it. Everything is dried and has the consistency of compost.

Urine can smell a bit if stored for too long or if you eat the right food. Personally, this doesn´t bother me, because the disposal intervals are in your own hands.

Last but not least, there is no need to go to a disposal station for the feces. The scenarios described above can be completely avoided with a dry separation toilet. 

I would like to mention once again that this scenario awaits you at least once a week if you have two cassettes for 3 persons. But you also have to dispose of and clean two of them.

5. Avoid expensive and dangerous chemical additives

To prevent the usual cassette toilet from smelling, a liquid is added, for example, Thetford Aqua Kem blue. According to the Thetford datasheet, this liquid is “very toxic to aquatic organisms with a long-term effect”

Hazardous ingredients contained therein are Sodiumalkylbenzenesulphonates; 2-BROMO-2-NITROPROPANE-1,3-DIOL. 

These substances are acutely toxic, even when inhaled, and irritating to the skin. Meanwhile, there are also biodegradable liquids for your camper toilet, but they also have their price.

With a composting toilet, you no longer need such substances. Apart from some litter, possibly compostable bags or a diluted vinegar/lemon cleaner, you do not need anything else.

6. Spare parts for camper toilets

If something should break at your cassette toilet, on the one hand, it is not easy to repair the part and on the other hand, it might be expensive. 

Depending on what breaks. In the worst case, you may need help from a caravan repair shop.

A composting toilet simply constructed in its principle: separator, urine and solids container – maybe a crank and fan. If something breaks here, it is usually not a problem for you because you can replace everything yourself.


As I was able to show you in this article, the change of a camping toilet to a composting toilet has a lot of advantages! So it is worth seriously considering it. However, if you need more detailed information, you can find all kinds of information here. 

You might also take a closer look at this post on the best partition toilets: The 6 best composting toilets for your mobile home, summer house and Tiny House.

I will also be happy to give you personal advice. Just contact me by e-mail:

If you would like to have a look around the composting toilet, I would be happy to welcome you to my store!

Feel free to leave a comment!


  • Mareike Jahns

    Hallo Petra, hallo Justyna, es hat sich etwas getan. Hier wird ein Umbausatz für die Thetford C260 zur Kassettentrenntoilette vorgestellt:

  • Gerd Rulle
    Gibt es eine Anleitung, wie man die Thetford Banktoilette am besten ausbaut?

  • Markus Becker

    Hallo Gerd, bei Youtube gibt es Videos dazu. Einfach mal “Thetford ausbauen” bzw. Chemie Toilette aus WoMo ausbauen in Youtube eingeben.

  • Justyna Ritter
    Hallo Petra, nein leider gibt es solch ein System noch nicht. Um die Thetford Toilette nutzen zu können, benötigt es einiges an Handwerksgeschick. Vermutlich ist es leichter neu aufzubauen oder direkt eine fertige Trenntoilette zu kaufen. Im Moment tut sich sehr viel beim Thema Trenntoilette/ Trockentoilette. Wer weiß was in der Zukunft noch alles an Möglichkeiten zur Verfügung stehen. Danke für deine Anregung! Grüße – Dein Team

  • Petra Götzen
    Gibt es ein System womit man die bestehende Toilette umrüsten kann ohne Demontage der perfekt angepasste Kassettentoilette (Thedford) im Womo? Toilettensitz austauschen und im Raum darunter die Kassette raus und mit Eimer und Behälter bestücken. Würde ich sofort bestellen??

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