Rainwater Retention and Storage
In just 60 seconds, see how robust physical infrastructure and advanced digital monitoring work together to help protect towns, cities and industrial sites from extreme weather.
JUMBO BLOCK – An Innovation by ZANNI GROUP
Our Response to Extreme Weather
Industrial infrastructure needs reliable planning, even when weather conditions are unpredictable. JUMBO BLOCK helps keep operations running.
Our patented system provides the structural capacity to capture large volumes of water as they arise, store them temporarily and manage their release precisely.
This turns unpredictable water volumes into a manageable operational resource.
Explore our response to extreme weather on the JUMBO BLOCK product website

Exceptional Versatility, Proven Strength
A system designed for demanding applications. Manufactured from high-strength C40/50 concrete, our modules offer structural load capacity far beyond that of conventional plastic systems.
Whether used for stormwater retention, firefighting water storage or infiltration, the underground installation leaves the surface accessible to vehicles and suitable for heavy industrial loads.

Digital Resilience for Critical Infrastructure
The patented JUMBO BLOCK Dashboard provides visibility designed to support compliance with the requirements of the NIS2 Directive, national critical-infrastructure regulations and the Cyber Resilience Act (CRA).
Continuous real-time monitoring of system data and fill levels supports tamper-resistant records and informed risk management at management level.

Key Features
Große Kapazität
13.9 m³ net capacity per standard module (2.5 × 2.5 × 2.5 m).
Betongüte
C40/50 concrete.
Abdichtung
Watertightness using SABA technology.
Nutzungsdauer
Stated design-life assumption: 80–120 years.
Reversibilität
Modular, expandable, relocatable and removable.

Versatile Applications
A new approach to operational risk management. The system adapts to your infrastructure requirements: use it for large-scale rainwater retention to reduce overload risk, as an enclosed reservoir for industrial processes and firefighting reserves, or for controlled on-site infiltration. Well suited to logistics centres, industrial sites and critical infrastructure.

Engineering Suite
We make planning as straightforward as possible. Use the digital JUMBO BLOCK Engineering Suite to tailor your retention or storage system to your project. Calculate capacities, configure your requirements and download relevant planning data. We can assist with structural and thermal calculations.
Simplify your planning with the JUMBO BLOCK Engineering Suite!

JUMBO BLOCK + SABA
Sustainability Meets Technical Innovation!
Discover how SABA’s specialist sealing and coating solutions help prepare our modular water storage systems for the future.