The Schwammstein offers an efficient and innovative new solution to the market that regulates the discharge of rainwater into tree pits and green spaces.
![](https://innovationinpolitics.eu/wp-content/uploads/2023/12/Schwammstein-5-CR-Aigner-MA-28-640x426.jpg)
The Schwammstein offers an efficient and innovative new solution to the market that regulates the discharge of rainwater into tree pits and green spaces.