Rainwater tanks underground

The rainwater tank is the heart of every system. Due to the underground installation, a large amount of water can be stored in an environmentally friendly way, the appearance of your garden is not disturbed and you do not have to worry about the tank in winter. Using the rainwater from the tank not only benefits your plants in the garden or your washing machine, but also protects the groundwater and your wallet in the long term.

High manufacturing quality lays the foundation for unique products. This ensures a special stability and accuracy of fit of the individual components. We have even developed a new, unique production process for the Carat underground tank. Our products are resilient, precise-fitting and user-friendly!


Rainwater harvesting packaged systems

Complete packages ready for your home, business, or garden.


Platin underground tank

  • Minimal installation depth, therefore low installation time and costs
  • Significantly less digging compared to a cylindrical cistern
  • Groundwater stable
  • Tank size of up to 65,000 litres
  • 15 years warranty

Carat underground tank

  • Highest fitting accuracy and quality due to unique production process
  • Practical complete solutions available
  • Easy transport & lower costs for logistics and installation due to low weight
  • Rotatable tank dome for easy alignment to the connecting pipes
  • Groundwater stable
  • Tank size of up to 122,000 litres
  • 15 year warranty