Rainstore3 by Invisible Structures is a modular, stackable underground water containment system that’s ideal for subsurface detention basins, retention and harvesting systems, rain gardens, green roofs, and sports field drainage. It features 94% void space and delivers nearly 25 gallons of water storage per unit, or up to 600 gallons at maximum stack height, without the need for gravel fill.
Made with 100% recycled polypropylene, the system has a modular design that allows for flexible layouts and depths. Moving water capture underground helps free up usable space above grade, prevents soil erosion, decreases evaporation, reduces runoff, and creates the potential for water reuse.