Do you really need litter in a composting toilet?
- Michael Zink
- 5 days ago
- 2 min read
Anyone who deals with composting toilets will sooner or later come across one topic:
Litter.
For many, it's simply part of life.
That's how it's recommended, that's how it's shown.
But when you use the system in everyday life, another question eventually arises:
👉 Is this really necessary?
Why litter is used at all
In classic composting toilets, the litter fulfills two functions:
absorb moisture
reduce odors
It works. But it also involves additional effort.
What this means in everyday life
On longer journeys, you quickly realize what that means in concrete terms:
Litter must be carried along or obtained on the way.
It needs space.
It needs to be refilled regularly.
What initially seems logical becomes an additional factor in everyday life that one constantly has to consider.
And this is precisely where people begin to question the system.
The real question is: Is it possible without litter?
Yes – if you think about the system differently.
Instead of binding odors and moisture in the toilet, they are actively vented to the outside.
This changes the entire approach:
no additional material
no refilling
Fewer things to think about
Something that is often overlooked: toilet paper
In many systems, it is collected separately – usually in a separate container.
This leads to further issues in everyday life:
additional space requirement
a second source of odor
additional effort during emptying
With the SETRENLO® approach, the toilet paper is deliberately placed in the solids container.
This has two crucial effects:
Firstly, it removes moisture from the solids – thus taking over part of the function that litter is otherwise supposed to fulfill.
Furthermore, a separate container is completely unnecessary.
In combination with active ventilation, this creates a system that significantly reduces both odor and moisture more effectively – without additional materials.
Side effect: You only see the toilet paper and nothing else. 😁
Why it feels different in everyday life
Ultimately, it's not about individual functions, but about how a system feels in everyday use.
Fewer components mean:
less effort
Fewer things to think about
and a significantly more pleasant user experience.
Can litter still be used?
Yes – that's possible at any time. The system also works with litter.
However, the crucial difference is:
It is not essential.
Many people use litter because they're used to it or feel safer with it. That's perfectly understandable. However, in practice, it often turns out that as soon as the system works reliably without litter, it quickly becomes unnecessary.
And that's precisely the real advantage. Not that you're not allowed to do it – but that you no longer need to.
Why SETRENLO deliberately avoids using litter
SETRENLO® was created precisely from this experience.
Not with the question:
"How do you build a composting toilet?"
Rather:
"What must it be like to really work in everyday life?"
Therefore, the focus is on:
- active odor eliminator
- reduced handling
- as natural a use as possible
With the goal that one eventually stops thinking about it altogether.
How to find the right solution for you
If you're currently looking into composting toilets, sooner or later the next question will arise:
Which solution actually fits my setup best?
👉 Here you will find a structured decision-making aid:
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