Rainstore3
Underground Water Storage System


Made From 100% Recycled Plastic
Rainstore3 is a modular, stackable, underground water containment system. Designed by a Landscape Architect for both subsurface detention basins and retention/harvesting systems in 1999, Rainstore3 has since been used in a myriad of other applications such as water/rain gardens, green roofs and sports field drainage. With depths ranging from 4” to 7.9’, units arrive to the site preassembled for easy, drop-in installation.
Learn More About Rainstore3
Each unit of Rainstore3 measures 1 m x 1 m x 0.1m high (3.28 ft x 3.28 ft x 4 inches). The compression fit units are stacked (if applicable) and sent preassembled to the construction site so there is no assembly required.
Making use of Invisible Structure’s trademark ring-on-grid design, Rainstore3 exceeds H-20 loading allowing it to support vehicular traffic, lightweight buildings or greenspace. An impressive 94% void space equates to almost 25 gallons of water storage per unit with no gravel fill required.
Better Stormwater Solutions/Applications
- Underground Detention Basin
- Retention/Harvesting Systems
- Water/Rain Gardens
- Green Roofs
- Sports Field Drainage
- Downspout Catch Basins
The Rainstore3 Advantages
- Modular and Stackable
- 94% Void Space with No Gravel Fill
- Exceeds H-20 Loading
- No Assembly Required
- 100% Recycled Plastic
- LEED Certified
Product Family BrochureLanguage: English |
Sedimentation and Storage SystemsLanguage: English |
Rainstore3 Chamber MaintenanceLanguage: English |
Rainstore3 Testing ResultsLanguage: English |
H-20 and HS-20 loadingLanguage: English |
Rainstore3 Inlet DesignLanguage: English |
Rainstore3 Sales SheetLanguage: English |
Leed v3 and ISILanguage: English |
LEEDv3 and ISI by ProductLanguage: English |
Preserving Fresh Water Resources with Invisible StructuresLanguage: English |
Rainstore3 Technical BrochureLanguage: English |
Rainstore3 Data SheetLanguage: English |
Rainstore3 Installation InstructionsLanguage: English |
Rainstore3 Installation Instructions Water HarvestingLanguage: English |
Rainstore3 Material Safety Data SheetLanguage: English |
Rainstore3 Technical Specification With Geomembrane and Fabric Liner For Water HarvestingLanguage: English |
Rainstore3 Especificación TécnicaLanguage: Spanish |
Rainstore3 Technical Specification With Geotextile Fabric LinerLanguage: English |
Rainstore3 Especificacion Tecnica Con Forro de Tela GeotextileLanguage: Spanish |
Product Family Brochure
Language: English
View Online Download
Sedimentation and Storage Systems
Language: English
View Online Download
Rainstore3 Chamber Maintenance
Language: English
View Online Download
Rainstore3 Testing Results
Language: English
View Online Download
H-20 and HS-20 loading
Language: English
View Online Download
Rainstore3 Inlet Design
Language: English
View Online Download
Rainstore3 Sales Sheet
Language: English
View Online Download
Leed v3 and ISI
Language: English
View Online Download
LEEDv3 and ISI by Product
Language: English
View Online Download
Preserving Fresh Water Resources with Invisible Structures
Language: English
View Online Download
Rainstore3 Technical Brochure
Language: English
View Online Download
Rainstore3 Data Sheet
Language: English
View Online Download
Rainstore3 Installation Instructions
Language: English
View Online Download
Rainstore3 Installation Instructions Water Harvesting
Language: English
View Online Download
Rainstore3 Material Safety Data Sheet
Language: English
View Online Download
Rainstore3 Technical Specification With Geomembrane and Fabric Liner For Water Harvesting
Language: English
View Online Download
Rainstore3 Especificación Técnica
Language: Spanish
View Online Download
Rainstore3 Technical Specification With Geotextile Fabric Liner
Language: English
View Online Download
Rainstore3 Especificacion Tecnica Con Forro de Tela Geotextile
Language: Spanish
View Online Download
What is Rainstore3??
Rainstore3 is a modular stackable underground water/liquid containment system. It is installed subsurface to be used as detention basins and retention harvesting systems. Made from 100% recycled plastic, units come preassembled for easy drop-in-installation.
What are the common Applications for Rainstore3?
Rainstore3 is a solution for stormwater retention and detention as well as other applications requiring liquid storage. Water will percolate through the ground or covering and can either run through Rainstrore3 at a controlled rate or be stored for later use. Common applications include:
- Underground Detention Basin
- Retention/Harvesting Systems
- Water/Rain Gardens
- Green Roofs
- Sports Field Drainage
- Downspout Catch Basins
- Utility Liquid Battery Storage
What is the Weight Capacity of Rainstore3?
Rainstore3 exceeds H-20 loading allowing it to support vehicular traffic, lightweight buildings or greenspace. Please see our H-20/Hs-20 Guide for more information.
How much water can Rainstore3 hold?
Rainstore3 is 94% void space. A single unit holds almost 25 gallons, which means each cubic meter is capable of holding up to 250 gallons.
What are the Main Advantages of Rainstore3?
Rainstore3, arrives pre-assembled, for easy installation. It is modular and stackable so can be installed in a wide range of depths, maximizing the capacity of water storage.
What is the Installation Process for Rainstore3?
Rainstore3 comes in preassembled custom height stacks that can be unloaded and dropped directly into the job site. Installation is fast and easy. For additional details please the Rainstore3 Installation Guide.
How are the inlet /outlet pipes attached to Rainstore3?
Inlet and outlet pipes can be attached to Rainstore3 by forming a “boot” with the fabric or liner and securing it with a hose clamp.
How much cover is required over the Rainstore3 system?
A minimum if 12” of compacted road base and a geogrid layer is required above the Rainstore3 chambers.
What keeps the soil from entering the cells?
Rainstore3 is wrapped in a geotextile fabric or PVC liner so soil and vegetation are unable to penetrate the chamber.
Can Rainstore3 be inspected after it is installed?
Adding maintenance ports during installation allows Rainstore3 to be inspected after the installation is complete. Please see the Rainstore3 Maintenance Guide for Details.
Is Silt buildup an issue?
Silt buildup can be prevented by using proper pre-filtration, such as catch basins or sediment filters. Using Rainstore3 in conjunction with Grasspave2 or Gravelpave2 can eliminate the need for any filtration systems as the water would be filtered naturally through bioremediation.
What is the product cost of Rainstore3?
Please see our Rainstore3 Estimator for product cost.
Rainstore3 Water Storage on a Roof |
Rainstore3 Unit Detail |
Rainstore3 Detention or Retention Systems |
Rainstore3 System for Harvesting and Reuse of Water |
Typical Rainstore3 Retention / Detention System with Porous Paver Inflow |
Rainstore3 System for Harvesting and with Porous Paving Inflow |
Sand Bio-filter Method Leading to a Rainstore3 Chamber |
Rainstore3 Inlet and Outlet Pipe Detail |
Rainstore3 Maintenance and Access Port Detail |
Rainstore3 Raingarden Detail/Infiltration Basin |
Rainstore3 Water Storage on a Roof
Rainstore3 Unit Detail
Rainstore3 Detention or Retention Systems
Rainstore3 System for Harvesting and Reuse of Water
Typical Rainstore3 Retention / Detention System with Porous Paver Inflow
Rainstore3 System for Harvesting and with Porous Paving Inflow
Sand Bio-filter Method Leading to a Rainstore3 Chamber
Rainstore3 Inlet and Outlet Pipe Detail
Rainstore3 Maintenance and Access Port Detail
Rainstore3 Raingarden Detail/Infiltration Basin
40″ x 40″ x 4″ (1 meter x 1 meter x 10 centimeters). Cells can be assembled in heights from one unit (10 cm, 4 inches), to 24 units (2.4 meters, 7.9 feet). Please see our Optimal Shipping Height Chart to avoid any additional shipping charges.
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