General questions

As the name suggests, the separation toilet separates something. And that is the liquid from the solid. Urine from the stool by means of an insert designed for this purpose.

Hence the many advantages of a compost toilet.

. The principle looks like this:

Read also this blog article. There I have summarized everything essential again.

To the blog article

Normally, a person excretes the following amounts:

Urine about 1.5l per day

Faeces about 150gr. per day

(Source Quarks & Co - WDR)

Please note that these are only guide values. Based on our own experience, we excrete partly up to 2.5l per person within 24 hrs.

Yes, composting toilets are also waterless toilets because they do not require water. Usual waterless toilets differ from composting toilets in the fact that they do not separate the solid and urine. Both can also go into the same container.

We currently only offer composting toilets here. Since here the disposal is simple and unconventional possible, as well as usually no (chemical) additives are needed.


Exactly. Fresh urine smells rather neutral, as far as you drink enough. As a rule, 1.5 to 2 liters a day are already sufficient here.

The well-known and foul-smelling urine stone is formed when urine is combined with the chalk found among other things in drinking water. Apart from the amount of urine and the chalk content of the water, it is primarily the residence time of the urine in siphons and other collection points that determines the amount of urine stone that is formed.

The separation of urine and solids is another additional factor in avoiding odor formation, which must be combated with chemicals, for example, in chemical toilets (everything in one container).

As a rule, it is the residual moisture in the solids that could cause unpleasant odors. So that this does not happen, you should cover the solid with a litter. Here you can use e.g. small animal litter or also bark mulch.

Or you have a toilet with "under-stirring function" (E.g. NaturesHead, AirHead, C-Head.) Here you need only a starting substance (e.g. a brick of coconut fiber). Each time you go to the toilet, the solid is then stirred under and covered by the solid that was already in the container before.



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with the following data:

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Please note that the complete processing may take 10 business days

RETURNS Address:
Die Richrath´s GmbH • • Kappeler Str. 143 • 40599 Duesseldorf

Of course we will refund you the payment for the returned order as soon as possible. In individual cases, the refund can be up to 14 days. 

We are represented at numerous trade fairs in 2022. come by to try out and get to know us personally. We often have a large selection of separation toilets and accessories on hand
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Yes, you can use a composting toilet everywhere where you can also install a normal toilet.

You can even use the composting toilet where you can no longer use a normal toilet. Specifically, when there is no water connection and no sewerage.

This also makes the composting toilet so unique and popular in many garden houses, tinyhouses, weekend houses as well as more and more for campers.

You do not need water, no chemicals and can dispose (almost) everywhere your residuals. Because the urine and solids are natural substances that you could even easily use as fertilizer, or compost.


This is entirely up to your preferences.

We have many customers who build their own individual composting toilet with the offered separation inserts and containers. Others use the already finished composting toilets .

Meanwhile, there are already a variety of finished variants. With and without composting device, compact plastic, designer toilets made of wood or even quite great garden toilets.

Look around in the store, read the many user reports on or watch the corresponding videos.


From my personal experience, I would provide a ventilator. Especially when your solid is still fresh or damp, it is advisable to use a ventilator for the removal of residual moisture.

Depending on the installation site (garden shed or mobile home) and the size of the room, you should actively ventilate with a fan. (For garden houses, passive venting can also be used).

Handling and disposal

You can throw the toilet paper into the solids container as usual. Then you cover everything with your litter, so that the moisture can be transported away. With crank toilets (composting toilets), every now and then the toilet paper wraps around the crankshaft, so some users prefer a separate collection of the used toilet paper.

During your period, you don't need to change your behavior. Tampons and pads also don't belong in a separation toilet. Pads and tampons would interfere with the composting process and hold too much moisture. Therefore, dispose of hygiene items in the trash.
If you use menstrual cups, you can dump the blood into the solids bin without worry. The blood, like the rest, will decompose over time.

Since it is pure urine and feces in the separate legacies you can dispose of both (almost) everywhere.

Diluted urine can even be used as fertilizer. Please note, however, that in this case you should not take any appropriate drugs that are excreted with the urine.

Otherwise simply into the sewerage system.

You can also compost the solid matter. Or simply add it to the household waste. It couldn't be easier.

In adetailed blog post you will find even more info.

VAT refund for non EU citizens

The latest legal regulations allow us to omit the German VAT directly at the time of purchase for non-EU citizens. So you can buy especially affordable with us. Prerequisite for the deduction of VAT is a non-EU delivery and billing address, eg, Switzerland.