rainwater harvesting systems

Smile Rain develops advanced rainwater harvesting systems that efficiently collect, filter, and treat rainwater for various uses. Their solutions cater to diverse needs, from irrigation to drinking water supply, promoting sustainable water management practices. With a focus on eco-design and energy autonomy, Smile Rain is paving the way for smarter water resource utilization in urban…

Smile Rain: Innovative Rainwater Harvesting Solutions for Sustainable Water Management


What is the Smile Rain Project?

Smile Rain develops and markets a range of innovative rainwater harvesting systems from 50 to 120 m² (other sizes available upon request). The project is about more than just collecting rainwater – it centralizes runoff from all types of outdoor spaces and transforms it into a reliable resource. By managing the water with ease, these systems are designed to store, filter, and treat water for various needs, including car washing, garden irrigation, and even supplying quality drinking water. This project was started with the aim to develop the use of rain water, a neglected water resource, in order to reduce man-made pressure on both underground and surface water. It is a smart way to access drinking water in isolated areas and facilitate development where water is in limited or no supply…

Main Benefit of the System

Key figures and facts that highlight the strengths of the Smile Rain systems include:

  • Covers all types of exterior spaces like terraces, halls, and car parks
  • Collects rainwater and centralizes runoff for efficient management
  • Stores, filters, and treats water for various autonomous uses
  • Distributes water for washing, irrigation, and drinking water supply (AEP)
  • Energy autonomous with integrated solar and small wind solutions
  • Connected technology that monitors water quality and quantity, air quality, and weather conditions online
  • Eco-designed, using recyclable or recycled materials for a greener footprint
  • Simple installation and transportable with limited maintenance needs
  • Modular construction available in square, round, or custom versions

Innovative Solutions for Rainwater Harvesting

Smile Rain presents a fresh take on water resource management by assembling products that correspond to a variety of needs and settings. The systems not only capture rainwater but also treat and distribute it securely. They are engineered for autonomous functioning by storing, filtering, and treating the collected water without the need for additional chemicals. Whether used for irrigation on a terrace or as a sustainable way to wash fleets of cars, each installation adapts effortlessly to surface constraints. It is a solution that brings together technical sophistication and practical installation on outdoor spaces.

Comprehensive Support and Technical Assistance

For every installation, the project offers a global response that starts from an opportunity study and extends to the commissioning of the installation. This involves:

• Determination of available water resources, as well as qualitative and quantitative needs – ensuring the system is perfectly matched to its environment.
• Assessment of the potential for rainwater distribution and the defining of technical and aesthetic specifications.
• Calculation of necessary storage volume based on rainfall distribution and needs, with a choice between flexible tanks, ornamental basins, or vegetation-based retention methods.
• Assembly of a tailored product that really fits the client’s needs, accompanied by technical assistance from start to finish.
• Ongoing maintenance and data analysis, ensuring that every drop of rainwater is accurately monitored and managed.

Diverse Rainwater Harvesting Systems

The portfolio of systems is designed to cover multiple practical applications and settings:

SHADOW – A system that covers all types of outdoor spaces, centralizing the runoff while preserving the ground space.
WASH – An ingenious washing station that uses collected rainwater autonomously and intelligently to manage car washing operations.
IRRIGATION – This system caters to terrace watering needs with intelligent, autonomous management of garden irrigation using the harvested rainwater.
DRINK – A solution ensuring controlled, year-round availability of drinking water by collecting and treating rainwater without added chemicals.
NRJ – Beyond water, this system supports flexible photovoltaic panels to produce, store, and distribute energy, blending energy and water resource management seamlessly.

Project Impact and SDGs

  • SDG 6 – Clean Water and Sanitation: Providing access to quality drinking water.
  • SDG 7 – Affordable and Clean Energy: Supporting energy autonomy with integrated solar and wind solutions.
  • SDG 11 – Sustainable Cities and Communities: Enhancing urban development and resource management in rapidly growing areas.
  • SDG 13 – Climate Action: Promoting more responsible management of water resources and reducing the pressure on natural water reserves.

A Global Perspective on Rainwater as a Resource

In a world where the global population is constantly increasing, water resources are under mounting pressure. Smile Rain’s comprehensive approach emphasizes the importance of managing rainwater, an abundant resource in many regions of the globe. Whether addressing challenges in remote villages lacking common water supply infrastructure or in urban areas where rapid development strains existing water networks, the project illustrates a dynamic solution. It not only offers a technical fix but also promotes a broader shift toward more sustainable water management practices. In essence, by developing and commercializing innovative impluviums, Smile Rain champions a new era where rainwater is preserved, harnessed, and finally recognized as a key resource for our future.


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