Sustainable toilet
for homes, on the road & businesses.

Toilets are important for health and hygiene to prevent diseases, protect the environment and improve the standard of living. Our solution is a sustainable toilet, which can be a real alternative for both residential and commercial customers. That also complies with the standard of DIN 30762 „Prefabricated sanitation systems without connection to water supply and sewage system – Requirements and product features“ and is therefore state of the art.

Planning and implementation

Depending on the type of toilet you want to buy from us, you need to consider a few points. A TTC HOLZ is certainly less complex and therefore easier to install than a TTC MINERAL together with a GOLDGRUBE®. Basically it is quite simple and since it is a little different from the traditional toilets, we will be happy to assist you in the decision, planning and implementation. A sustainable toilet helps us all to save CO2, electricity and water.

We have many years of experience in this field and can assist you both in choosing the right dry separation toilet and in professional installation and maintenance. With us, you have a reliable partner at your side who can help you implement resource-saving and sustainable sanitary solutions. Please contact us for further information.

TTC = Sustainable toilet

Our two sustainable toilets next to each other.

Terminology: TTC, by the way, stands for “dry- separating closet” in German and is meant to be a reference to the WC, which stands for “water closet”.

TTC HOLZ

Auf dem Foto ist von einem geschlossenen TTC HOLZ zu sehen.
TTC HOLZ

The TTC HOLZ is a compact toilet solution and it is ideal especially for the recreational sector – the solution for anyone looking for a simple and sustainable toilet.

Urine and feces are collected separately without water and other additives. This allows for a relatively large number of uses with a small collection volume. The sturdy wooden chair is equipped with a vent, so that toilet odors are sucked into the chair and released outside.

More information about the TTC HOLZ can be found on the product page. There is also a more detailed description of the installation.

TTC HOLZ in einem Gartenhaus eingebaut.
TTC HOLZ in a garden house

TTC MINERAL

Auf dem Foto ist ein TTC MINERAL von oben zu sehen. Man kann die Trennung der Ausscheidungen erkennen. Im oberen Bereich ist das große Loch für die Feststoffe und im vorderen Bereich ist ein kleines Loch in einer Absenke für den Urin.
TTC MINERAL top view

The TTC MINERAL is the more noble and larger version. We recommend it for toilet solutions in residential and weekend houses as well as for commercial buildings.

The mineral composite is a robust and break-proof material that has proven itself in the sanitary sector. Depending on the situation, the TTC MINERAL can be combined with one of our GOLDGRUBE® or with our barrel solution.

For more information about our innovative and sustainable toilet TTC MINERAL, please visit the product page.

TTC Mineral in einem Wohnhaus eingebaut.
TTC MINERAL in a residential house

GOLDGRUBE® for residential houses, weekend houses, tiny houses or commerical buildings

The GOLDGRUBE® made of concrete can be integrated into buildings. In the case of a new building, integration should be considered from the outset. We will be happy to support you in finding your solution. Integration into existing buildings is also possible and this is somewhat more complex. You will find several important parameters in the table for the GOLDGRUBE® as well as in the data sheets (German only).

Urine and feces are collected separately without water and other additives. This means that high usage figures are possible with small collection volumes.

Auf der Skizze ist eine geschlossene GOLDGRUBE zu erkennen. Auf diesem Behälter ist eine Entnahmeöffnung sowie ein Toilettenstuhl (TTC MINERAL) zu erkennen.
  • High static load capacity, can be installed under or in building foundation plate
  • Depending on location, low construction effort
  • Approvable (regulated building product), also in protection zone
  • Three sizes (small, medium, large)
  • For up to 6 residents (according to size)
  • Approx. one emptying per year
  • Low disposal quantities per emptying (max. 3 m³)
  • Emptying opening outside the building
  • Emptying is done by a vacuum truck
  • No waste water generated by the toilet
  • Remaining grey water, e.g. from shower, can be treated by small constructed wetland
  • User-friendly
  • No flushing, littering or chemicals
  • Hygienic
  • No toilet odors, thanks to ventilation

Installation variants

The following examples refer to a residential house with four persons or a tiny house that is only used seasonally. In case of less or more use, the values can be adjusted accordingly. We will be happy to assist you. Of course, these variants can also be used for your weekend house, mountain cabin or lake house.

Building without cellar - TTC MINERAL with GOLDGRUBE®

Die Skizze zeigt ein Wohnhaus ohne Keller mit einer GOLDGRUBE.
Die Skizze zeigt ein Tiny House ohne Keller mit einer GOLDGRUBE.

The GOLDGRUBE® Concrete can be installed under the floor plate of a new building. The extraction opening is outside the building.

The toilet chair, the TTC MINERAL, is placed next to an exterior wall.

This solution can be easily implemented especially in a new building. It is quite comfortable for the users / owners, as they do not have to handle the substances. Emptying by an appropriate vacuum truck is done about once a year and this is done from the outside at the extraction opening.

For the different versions we have also provided a few data sheets to give you a better impression (German only). We are also happy to support you in the implementation. Simply get in touch with us.

Building without cellar - TTC MINERAL with tanks in a barrel cellar

Die Skizze zeigt ein Wohnhaus mit einem Keller und der Fasslösung, die Außenkeller für Fässer hat sowie ein Urintank im Erdboden.
Die Skizze zeigt ein Tiny House mit einem Keller und der Fasslösung, die Außenkeller für Fässer hat sowie ein Urintank im Erdboden.

The TTC MINERAL with collection tank in the barrel cellar is a practicable variant for new buildings and conditionally for old buildings. This solution can be installed with little constructional and financial effort – urine and feces are stored under the toilet room. The full wide-necked barrel is exchanged for an empty one, closed and set aside. Of course, the barrels can be used in other sizes as well.

The toilet chair, the TTC MINERAL, is placed next to an exterior wall.

The substances can be stored in the barrels until they are emptied. Depending on the legal framework, own use of the substances is also possible. Emptying can take place outside the building.

Building with cellar - TTC MINERAL with barrels in a cellar

Die Skizze zeigt ein Wohnhaus mit einem Keller und der Fasslösung über verschiedene Stockwerke.
Die Skizze zeigt ein Tiny House mit einem Keller und der Fasslösung.

The TTC MINERAL with collection containers (barrels) in the basement is possible in new buildings and old buildings that have a cellar. This solution can be implemented with little constructional or financial effort – urine and feces are stored under the toilet room in appropriate containers. A full wide-necked barrel is exchanged for an empty one, closed and set aside. Of course, the barrels can be used in other sizes as well.

The toilet chair, the TTC MINERAL, is placed underneath the cellar room. The solution, like the GOLDGRUBE®, can also accommodate sustainable toilets over several floors, as shown in the schematic above.

The substances can be stored in the barrels until they are emptied. Depending on the legal framework, in-house use of the substances is also possible. Emptying can take place outside the building.

Sanitary solution including gray water purification and use

A sanitation solution that includes the purification and use of gray water offers a sustainable alternative to conventional wastewater disposal. This saves valuable drinking water and reduces wastewater costs. The graywater treated by the constructed wetland can either be infiltrated or discharged into a body of groundwater, provided local regulations are met. A sanitation solution with graywater treatment and use is thus an environmentally friendly and resource-saving alternative to traditional wastewater disposal.


Here are two examples:

Die Skizze zeigt ein Wohnhaus mit einer unserer Fasslösungen und der notwendigen Pflanzenkläranlage.
Barrel solution in the basement of a residential building in combination with a constructed wetland
Die Skizze zeigt ein Tiny House mit einer unserer Kunststoffgoldgruben und der notwendigen Pflanzenkläranlage.
GOLDGRUBE® under a Tiny House in combination with a constructed wetland