Rototec introduces three integrated solutions for more efficient and sustainable water cycle management: RUBIKO stormwater management systems, the REGRIGIO greywater treatment plant, and the new KAR line of drive-over modular systems. These technologies are designed for engineers, technical offices and contractors who must respond to extreme weather events, regulatory constraints and water reuse requirements in civil and industrial contexts.
RUBIKO: modular systems for stormwater management
What RUBIKO is and typical applications
RUBIKO is a modular system of high-strength polypropylene drainage cells designed for sustainable stormwater management even in high-density urban areas. The system allows underground basins to be configured for soil infiltration, attenuation and controlled release, or for rainwater storage and reuse for irrigation, technical and industrial uses. It is suitable for car parks, yards, green areas, urban infrastructure and projects where hydraulic invariance must be ensured while reducing the load on existing drainage networks.
Main benefits of RUBIKO
- Flexible stormwater management: infiltration into the ground, controlled attenuation and water recovery/reuse through a single modular system.
- High usable volume thanks to a 95% storage coefficient, optimising available excavation space.
- Lightweight, stackable modules that are easy to handle, with optimised logistics (up to 500 m³ of modules transportable with a single truck).
- Three versions (LITE, MID, PRO) designed for pedestrian loads, light vehicle traffic or heavy loads, including driveable roads and industrial yards.
- Inspection and periodic maintenance possible thanks to dedicated inspection chambers and access shafts, ensuring long-term system durability.
Essential specifications and key features
The RUBIKO system uses standard modules in two heights (60 and 90 cm), allowing the basin volume to be adapted to depth constraints and site space. The drainage cells are certified according to UNI EN 17152-1 and made of high-strength PP. Depending on the intended use, the enclosure can be built with geotextile only for drainage or with geotextile + HDPE geomembrane for storage and reuse, with stratigraphies designed to protect the structure and ensure proper hydraulic performance.
Installation requires careful workmanship: preparing the excavation with a drainage bedding layer, laying geotextile and geomembrane (where required), placing the RUBIKO modules, connecting the inlet/outlet collectors and then backfilling with suitable materials. To achieve the declared performance, it is essential to rely on trained personnel and follow Rototec’s technical instructions.
REGRIGIO: greywater treatment plant
What REGRIGIO is and when it is used
REGRIGIO is a compact system for treating greywater from sinks, showers and bathtubs. The system treats domestic wastewater through sedimentation, filtration and ultrafiltration stages, producing treated water suitable for non-potable uses. The treated water can be reused for toilet flushing, washing machines, cleaning activities and garden irrigation, helping reduce water consumption and reliance on the supply network or other sources.
Thanks to its compact size, the REGRIGIO greywater treatment plant can be installed in basements, garages, technical rooms or outdoors in many single-family homes. The range includes several configurations designed for households from 8 to 55 population equivalents and daily flows from 400 to 5,500 litres, depending on project requirements.
Benefits of the REGRIGIO system
- Compact design, ideal for limited spaces and integration in existing buildings.
- Hygienic reliability thanks to a treatment process that combines sedimentation, a bioreactor and membrane ultrafiltration.
- Ready to use: components and tanks are already sized and coordinated for fast installation.
- Reduced consumption in terms of both energy and externally supplied water.
- Self-cleaning operation and long-lasting filtration, reducing routine maintenance interventions.
Requirements and application compatibility
REGRIGIO is designed exclusively for greywater treatment, separated from blackwater. The typical configuration includes a sedimentation tank, prefilter, bioreactor, membrane station, aeration blower, sludge pump, control unit and treated water storage tank. The system is particularly suitable for single-family homes looking to integrate internal water reuse systems for toilet flushing and washing, or for residential projects focused on sustainability and reduced consumption.
New KAR line: drive-over modular systems for deep excavations
Positioning of the KAR line
The new KAR line is a drive-over modular Infinitank system developed by the Rototec Technical Team in collaboration with applied geology and geotechnical engineering specialists. These drive-over modular systems are designed for excavations deeper than 40 cm and up to 150 cm, with load capacity up to 12 tonnes, without the need for concrete reinforcement or structural slabs. The rotomoulded Infinitank Linear KAR tanks provide an efficient and versatile solution for civil and industrial installations exposed to heavy loads and demanding installation conditions.
Distinctive elements of the KAR line
- Dedicated installation depths: suitable for excavations between 40 and 150 cm, with stratigraphies specifically developed for this family of drive-over modular systems.
- High load capacity: capable of supporting loads up to 12 tonnes, suitable for areas subject to intense vehicular traffic.
- Capacities from 11,000 to 40,000 litres, optimised for projects requiring large storage volumes.
- High-performance polymers, durable and recyclable, ensuring structural resistance and sustainability.
- Proven reliability with over one year of field testing in real operating conditions, supported by advanced FEM analyses and dedicated sensors.
Applications and installation method
The KAR line is designed for both civil and industrial installations where modular rotomoulded tanks must be integrated into driveable areas. To maximise efficiency and safety, a dedicated installation method has been developed specifically for these high-performance polymer systems. The procedure, validated through real field tests, defines the stratigraphy and backfilling methods to be followed. The declared advantages can only be achieved by fully complying with the installation procedures defined by Rototec.
Comparison between RUBIKO, REGRIGIO and KAR line
| Product | Use | Key advantages | Application | Notes |
|---|---|---|---|---|
| RUBIKO | Stormwater management systems for infiltration, attenuation and storage/reuse. | Modular PP drainage cells, 95% void ratio, H 60/90 modules, LITE/MID/PRO versions. | Urban areas, car parks, industrial yards, green areas with hydraulic invariance requirements. | Configurable with geotextile only for drainage, or with geotextile + HDPE geomembrane for storage. |
| REGRIGIO | Domestic greywater treatment plant for water from sinks, showers and bathtubs. | Compact design, membrane process with ultrafiltration, reduced consumption, self-cleaning operation. | Single-family homes and light residential projects focused on internal water reuse. | Sizes for 8–55 population equivalents, daily flows from 400 to 5,500 l/day with reuse for toilets, washing machine, cleaning and irrigation. |
| KAR line | Drive-over modular systems for tanks in deep excavations subject to vehicular loads. | Depth 40–150 cm, load capacity up to 12 t, capacity 11,000–40,000 l, high-performance polymers. | Civil and industrial installations in driveable areas, yards and infrastructure exposed to heavy loads. | Performance ensured by following dedicated installation methods developed with geology and geotechnics specialists. |
Why Rototec
Rototec, part of System Group, specialises in the design and production of advanced polyethylene solutions for wastewater treatment and for stormwater recovery and storage. The company combines efficiency, innovation and sustainability, using materials with a significant recycled content and products that comply with the main industry standards.
The quality management system is certified ISO 9001:2015 and the occupational health and safety management system is certified UNI EN ISO 45001. The solutions are designed to comply with the Minimum Environmental Criteria (CAM), supporting designers and contracting authorities in preparing sustainability-oriented technical specifications.
Thanks to dedicated manufacturing plants and a network of technical consultants across the territory, Rototec supports customers from the study phase through installation, with on-site assistance, digital tools (Web App, BIM libraries) and complete technical documentation for each product.
FAQs about RUBIKO, REGRIGIO and the KAR line
What are RUBIKO drainage cells and how do they work?
RUBIKO drainage cells are high-strength polypropylene modules that, when assembled together, form underground basins for stormwater management. Depending on the project and soil characteristics, the system can be configured to infiltrate water into the ground, attenuate and release excess flows in a controlled manner, or store water and make it available for irrigation, technical and industrial reuse.
When is the REGRIGIO system recommended for greywater treatment?
REGRIGIO is recommended when you want to recover and reuse domestic greywater (from sinks, showers and bathtubs) in residential buildings, especially single-family homes. The system turns this water into a resource for toilet flushing, washing machines, cleaning and irrigation, reducing potable water consumption and supporting more sustainable building management.
What types of projects was the KAR line developed for?
The KAR line was developed for projects requiring drive-over modular tanks installed in deep excavations subject to significant vehicular loads. It is ideal in civil and industrial contexts for yards, internal roadways and areas subject to traffic up to 12 tonnes, where storage capacity, mechanical strength and optimisation of civil works are required thanks to the absence of concrete reinforcement and structural slabs.
How can treated water from Rototec systems be reused?
Rainwater managed by RUBIKO, when the system is configured as a storage basin, can be reused for irrigating green areas, non-potable technical and industrial uses, or washing. Treated water produced by the REGRIGIO system is suitable for non-potable uses, including toilet flushing, washing machines, household cleaning and garden irrigation, in accordance with the applicable design and regulatory requirements.
Which certifications support the reliability of Rototec solutions?
RUBIKO drainage cells are certified according to UNI EN 17152-1 and are designed to be compliant with the Minimum Environmental Criteria (CAM). At company level, Rototec holds ISO 9001:2015 certification for its quality management system and UNI EN ISO 45001 for occupational health and safety. In addition, System Group’s Sustainability Report is verified by an independent third party in accordance with GRI standards, confirming the commitment to responsible resource management.
Talk to a Rototec expert
RUBIKO, REGRIGIO and the KAR line provide complementary solutions to manage stormwater and greywater sustainably, reducing flood risk and optimising water reuse. To assess which configuration best suits your project and obtain a tailored sizing, you can discuss it with the Rototec technical team.
Request a technical consultation or a dedicated quotation: Talk to a Rototec expert.