Efficient rainwater management for the Jacques Brel school in Herstal
The Jacques Brel school in Herstal is undergoing a thorough renovation. While preserving the historical building, the various structures are being merged into one modern and functional location. The modernization also includes an efficient system for rainwater harvesting and rainwater infiltration, with Deschacht supplying the rainwater basins and providing support during installation.
Why rainwater infiltration is crucial for new projects
It will not have escaped your notice that the end of 2023 and the first half of 2024 are characterized by heavy rainfall, ranging from drizzle to downpours. This emphasizes the importance of rainwater infiltration in renovation and new construction projects. Capturing and reusing rainwater is increasingly becoming an obligation to prevent flooding and provide sustainable water solutions.
Underground rainwater buffer: the ideal solution
Various solutions are available for architects and engineers, but an underground rainwater buffer remains the most efficient choice for rainwater infiltration. Traditional concrete tanks require deep excavations and offer limited storage space. However, the Variobox, a lightweight modular system, provides a superior solution for collecting rainwater and ensures effective infiltration, even in confined spaces.
Collaboration for local excavation work
The construction company Cop en Portier, which is responsible for the construction, collaborated with local partner Frédéric Nizet for the excavation and sewerage works. Deschacht ensured careful planning and timely delivery of all necessary components, allowing the installation to proceed quickly and efficiently.
Successful installation of rainwater buffer in one day
On a sunny day, the rainwater buffer was installed. With a capacity of 112 m³, spread across a single layer, the system was successfully put in place. Thanks to the geotextile lining and the smart infrastructure, the collection and reuse of rainwater is managed efficiently, contributing to the sustainability and safety of the school environment.
Innovative solutions for capturing and reusing rainwater
Within a few months, the students and teachers of the Jacques Brel school will benefit from a modern facility where underground solutions such as the Variobox from Deschacht ensure optimal rainwater infiltration. This contributes not only to the safety of the students, but also to the peace of mind of the local residents.
Project overview: Jacques Brel School Herstal
Construction on the Jacques Brel school in Herstal officially started on April 19. By the end of 2025, this school will form a single modern and functional building, in which both rainwater collection and rainwater infiltration play an important role.




Company information Nizet Frères SPRL
- Location: Oupeye
- Founded: 1997
- Number of employees: 5
- Activities: public works (municipal roads, sidewalks, road signs) and private works (construction of industrial estates, parking lots, driveways, etc.).
- Website: http://nizet-freres.be
