More volume, less excavation.
ROTO Flat tanks for quick and efficient installation.
Flat water tanks – maximum volume with minimal excavation
Flat water tanks are the ideal solution when high-capacity water storage is needed in a limited space. Thanks to their particularly shallow design, they require only a minimal installation depth and are therefore perfectly suited for retrofitting in existing gardens or properties—without extensive earthwork or large construction sites.
Whether for rainwater harvesting, service water, or industrial applications:
ROTO shallow tanks offer maximum flexibility combined with high cost-effectiveness.
Applications of ROTO Flat Water Tanks:
- Rainwater harvesting for home and garden
- Water storage for commercial applications
- Agricultural use
- Firewater storage and infrastructure projects
- Decentralized water management systems
Especially in times of increasing weather extremes, flat tanks enable reliable water storage and actively contribute to reducing the burden on the sewer system and to the sustainable use of resources.
Flat water tanks
The RoCube is a modern flat tank for underground rainwater storage with an exceptionally shallow installation depth. Thanks to its flat design, it is ideal for properties with difficult soil conditions or high groundwater levels.
The rectangular, flat design allows for a narrow excavation and significantly reduces earthwork.
With the RoCube, you can save up to 25% on installation costs!
5.000 - 15.000 Liter
The RoCube is a flat tank for underground rainwater storage with a particularly shallow installation depth.
Der Robox-Flachtank mit einem Volumen von 5.000 Litern bietet eine technisch ausgereifte Lösung für die Speicherung von Regen- oder Brauchwasser.
Der Tank überzeugt durch seine robuste, langlebige Konstruktion aus hochwertigem Polyethylen.
Die rechteckige, flache Bauform ermöglicht eine schmale Baugrube und reduziert Erdarbeiten erheblich.
Mit der Robox sparen Sie bis zu 25% Installationskosten!
5.000 Liter
The Robox flat tank offers a proven solution for storing rainwater or graywater.
REDUCE TRANSPORT COSTS
An optimized design and low weight enable efficient transport. Shipping more tanks per delivery significantly reduces logistics effort and costs.
REDUCE INSTALLATION COSTS
Up to 25% lower installation costs thanks to quick assembly, reduced material usage, and shorter construction time.
MINIMAL EXCAVATION
The shallow design requires only a minimal installation depth. Less excavation saves time and money and preserves existing site structures.
QUICK INSTALLATION
Installation without the need for time-consuming additional steps such as filling with water or complex foundation solutions. This speeds up the entire construction process.
MAXIMUM SPACE EFFICIENCY
Large storage capacity with minimal space requirements—ideal for small lots and retrofits.
ROBUST & SAFE
High structural stability, durable materials, and reliable operation even in challenging installation environments.
Did you know?
…that the average water consumption per person is about 130 liters per day? Rainwater can be used for all household needs, except as drinking water or for food preparation.The graph shows that a household typically uses only 2% of its drinking water for actual drinking or cooking. Rainwater can be used for watering the garden, doing laundry, washing dishes, washing the car, flushing the toilet, etc.
Household water consumption
FAQ - Frequently Asked Questions
What is a flat water tank, and when is it useful?
A flat water tank is a storage tank designed to be particularly shallow. It is ideal for situations where installation depth is limited, ground conditions are difficult, or when retrofitting an existing garden.
How much excavation is required for a flat water tank?
Significantly less than with traditional tanks. Thanks to their flat design, they require only a shallow installation depth, which significantly reduces earthwork, construction time, and costs.
Are flat water tanks cheaper to install?
Yes. Less excavation, simpler excavation pits, and faster installation result in installation costs that are up to 25% lower compared to conventional tanks.
What are the advantages of transportation?
Flat water tanks are designed to be lighter and more compact. This allows more tanks to be transported per shipment, which significantly reduces shipping costs.
Für welche Anwendungen sind Flachwassertanks geeignet?
Sie eignen sich für Regenwassernutzung, Brauchwasser, industrielle Anwendungen sowie für private, gewerbliche und kommunale Projekte. Besonders praktisch sind sie überall dort, wo Platz oder Einbautiefe begrenzt ist.
Can’t find the right ROTO rainwater tank?
Contact us. We would be happy to advise you personally and provide you with a customized quote for your project.



