Non-sewered Sanitation System

A sustainable and innovative solution for public toilets, as well as private ones, are dry separation toilets. These save water and allow for environmentally friendly disposal of “waste”. Thanks to their simple design, they are easy to install and maintain. By eliminating the use of chemicals and water, wastewater pollution is also reduced. With this technology, the public sector can improve their environmental footprint while providing a hygienic and comfortable toilet solution for their visitors.

You can find these benefits and much more on this page. If you have any questions or suggestions, please do not hesitate to contact us.

How a dry separation toilet works

Die Grafik stellt das Prinzip einer Trockentrenntoiletten da. Unter dem Toilettenstuhl ist ein Fass für die Feststoffe installiert und daneben ein Tank für den Urin. Die beiden Stoffe werden in der Toilette getrennt und so gelagert.

The separation in the toilet

Urine and feces are substances that are clearly different from each other and our body already separates them. The dry separation toilet maintains this separation and is waterless.

The liquid urine is directed through hoses and pipes into collection containers, just as many men already know from waterless urinals.

The excrement falls by gravity into a collection tank. The toilet seat and downpipe are designed in such a way that the feces are not visible or accessible. The collection containers are either barrels or our GOLDGRUBE®.

The containers are emptied with an appropriate vacuum pumping vehicle, since both material streams consist largely of water.

You can find out more about the toilet in general, our dry separation toilet and everything else you’ve always wanted to know about it in our interesting facts section or in our toilet blog.

Das Diagramm zeigt den Unterschied zwischen einem herkömmlichen WC und unserer Lösung auf. Hierdurch werden bis zu 13.000 Liter Wasser bzw. Abwasser gespart.

The saving by dry separation toilets

Urine contains large amounts of nutrients and feces consist of energy-rich, organic substances. If we do not mix urine and feces, or mix them with little water, then they remain valuable substances. Until the introduction of the water flush toilet, the materials were commonly used.

Traditional water toilets greatly dilute the amount of feces, turning 600 liters of excrement into 13,000 liters of dirty water. As a result, large amounts of wastewater must be transported and direct use is no longer possible. Subsequently, we as a society try to partially re-purify the wastewater in a wastewater treatment plant with a high input of energy and materials and then return the treated water to nature. However, it is not drinking water and still contains many pollutants. Some of the residual waste in the treatment plant is burned to produce energy, and the rest often ends up in garbage dumps.

In a waterless toilet, such as a dry separation toilet, no wastewater is produced and fecal matter does not enter the sewer system. As a result, the pollution of the remaining wastewater and the danger to the environment are significantly lower than with today’s dirty water. Thus, our modern toilets better protect the environment, as well as groundwater and human health.

Areas of application

Our toilets advantages

Das Foto zeigt die Toilettenanlage Ehrbach. Diese ist eine behindertengerechte Toilettenanlage mit einem Toilettenstuhl und einem Urinal. Neben dem Stuhl befinden sich je rechts und links ein Klappgriffe. Die Wände ist gelb gestrichen.


Our toilet is a dry separation toilet and offers more comfort than other concepts. The toilet chair is the same as the usual structure and the excrements are not visible. A small fan in the toilet chair permanently ventilates the entire room and the fresh air makes your visit to our toilet so pleasant and hygienic.

Auf dem Foto ist ein Baum und im Hintergrund ist einer blauer Himmel zu erkennen.


A GOLDGRUBE® is a sustainable solution from various points of view. On the one hand, it saves water and thus avoids wastewater that needs to be treated. On the other hand, no additional resources have to be spent on infrastructure. Thus, you get a decentralized solution whose resources you could easily reprocess.

Auf dem Foto ist in der Mitte ein blau-weißes Sparschwein. Dieses steht auf einem Tisch Eine Person schmeißt gerade ein Geldstück durch den Schlitz hinein. Weitere Geldstück liegen daneben und im Hintergrund sind Pflanzen zu sehen.


The installation of the GOLDGRUBE® makes sense from an ecological and economic point of view. Because you save the costs for the sewer connection as well as the daily water expenses of the toilet. This reduces the total costs by 80% to 90% compared to conventional solutions - and this with a lifetime of over 25 years.

Das Foto ist zwei geteilt. Auf der einen Seite ist ein Toilettenraum. Dieser ist im Hintergrund hat zeigt eine behindertengerechte Toilette mit zwei Klappgriffen. Im Vordergrund ist ein WC Schild an der Wand zu erkennen.

Easy to operate.

The simplicity of the concept makes our dry separation toilets pleasant for the operator: the systems are frost-proof, robust and require little maintenance. Disposal of the materials depends on the size of the plant and the frequency of use. A large GOLDGRUBE®, for example, is designed for up to 9,000 uses, which usually corresponds to one emptying per year. The non-porous, smooth surface of the toilet seat enables quick, easy and thorough cleaning.

Auf dem Foto ist eine kleine Solaranlage auf einem Ziegeldach zu erkennen. Im Hintergrund sieht man noch leicht ein paar Bäume und einen blauen Himmel.

Self-sufficient. Flexible.

The toilet solution offers high flexibility by avoiding connections to the infrastructure. The separate storage of feces and urine in one container also means that no further additives such as chemicals or litter are required. Therefore, no substances need to be kept on hand or refilled, users do not have to pay attention to anything and disposals are likewise unproblematic. In addition, the GOLDGRUBE® is buoyancy-proof and floodable and the system can be operated self-sufficiently by a solar panel.

Das Foto zeigt zwei unterschiedliche Trenneinsätze der Toilette. Zum einen das TTC MINERAL von oben wie auch den Kunststoffeinsatz des TTC HOLZ.
For residential and commercial use

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Public Non-sewered Sanitation System

self-sufficient          low maintenance           substainable           optional: easy accessible

Das Foto zeigt ein Haus mit einer Trockentrenntoilette. Im Vordergrund sieht man etwas Schliff und im Hintergrund sind Bäume zu sehen. Es ist ein blauer Himmel mit ein paar Schäfchenwolken im oberen Teil des Fotos.

We offer self-sufficient, connection-free toilet solutions. These comply with DIN 30762 and are therefore state of the art. You can set up our solutions flexibly, as we do not require access to the typical connections to the infrastructure. In this way, you avoid high investment costs in the sewer network and at the same time protect the environment. This beneficts are helping everyone. By means of vacuum suction vehicles, an annual emptying usually takes place.

Where could you imagine a new toilet facility?