2.200 bis 3.300 Liter
Roterra 1400 - Compact rainwater cistern for underground installation.
The Roterra 1400 is a space-saving and versatile rainwater cistern designed for underground installation in both residential and commercial settings. With a storage capacity of 2,200 to 3,300 liters, the PE tank is ideal for single-family homes, garden irrigation, or smaller service water solutions.
Made of high-quality polyethylene, the tank offers excellent structural properties and high resistance to earth pressure. Its robust construction ensures long-term stability in the ground and a long service life.
The plastic cover is equipped with an integrated seal and ensures reliable watertightness. The standard cover is walkable and can withstand loads of up to 0.2 kN/m², enabling safe access for maintenance and inspection work.
For maximum design flexibility, the inlet and outlet sizes are custom-manufactured according to customer specifications from DN 50 to DN 400. This allows the Roterra 1400 to be flexibly integrated into existing piping systems.
The advantages of the Roterra 1400 at a glance:
Cost-effectiveness & efficiency
- Quick and easy installation thanks to the flat tank bottom
- Reduced need for filler material – time and cost savings
- Fully pre-assembled components – ready for immediate use
- Lightweight thanks to polyethylene – easy to transport
Safety & structural integrity
- Elliptical tank design for excellent structural stability
- High resistance to soil and groundwater forces
- Groundwater level remains stable up to the middle of the tank
- Suitable for trucks with an axle load of up to 40 tons (RoDrive)
- Walkable, watertight cover (from DN 50 to DN 400)
Sustainability & maintenance
- Durable, corrosion-resistant polyethylene
- Durably waterproof construction
- Flat, precise mating surfaces for secure pipe connections
- Optional access hatch for easy inspection and maintenance
- 10-year manufacturer's warranty for long-term investment security
The Roterra 1400 in detail
- WALKABLE COVERING
- The built-in gasket ensures watertightness. It is attached to the telescoping manhole cover with a hinge—making it easy to open the lid in a flash.
- FLAT SURFACE FOR PIPE CONNECTIONS
- CONNECTIVITY OPTIONS
- REINFORCING RIBS provide stability and reliably protect against deformation. Wall thickness: 8–14 mm.
- TELESCOPIC INSPECTION OPENING SHAFT
- The telescopic extension for the Roterra tank features a threaded design, allowing for quick, tool-free adjustment to different ground levels. It has standard dimensions of Ø 600 × 300 mm—ideal for efficient and safe installation
Technical data and dimensions
RotoRain Rainwater harwesting
With RotoRain, we design urban infrastructure that actively stores, utilizes, and allows rainwater to infiltrate—technologically smart, nature-friendly, and climate-resilient. With RotoRain, you can collect and store rainwater to put it to good use in your daily life. This way, you reduce your water costs and make an important contribution to protecting our environment. Especially in times of increasing extreme weather, RotoRain helps to store heavy rainfall in a targeted manner and relieve the sewer system. This prevents flooding and protects your home. The collected rainwater is ideal for watering your garden, flushing toilets, or even for washing machines. This way, you conserve valuable drinking water and significantly reduce your consumption. RotoRain systems are designed to be easy to install and visually appealing. With RotoRain, you’re not only investing in sustainable technology, but also in greater independence and increased property value. This way, you make your home fit for the future—weatherproof, eco-friendly, and attractive.
RotoRain Garden-Kit BASIC
- Roterra tank
- Inspection opening octabin with seal and foldable lid
- Filter basket DN 400 for hanging (for roof areas up to 200 m²)
- Submersible motor pump set with MULTI-05-IS 3.6 bar / 95 l/min