Atlantis Flo-Tank® Modular Underground Storage System is designed to cleanly capture rainwater. It is suitable to use in residential and commercial installation projects for underground infiltration, detention and rainwater harvesting. 

The system can be installed in various volumes, shapes and depths to meet specific project requirements. The entire project location serves as a catchment area for storing underground water.

Atlantis Flo-Tank product image


  • High infiltration with 95% void surface area
  • One cubic metre of Flo-Tank holds up to 950 litres of water
  • Versatile modular system allows to create shape and size suitable for site requirements
  • Maintenance free tank with all debris and sediment removed by pre-filtration
  • Cost-effective solution compared to concrete and other conventional systems with excavation and disposal reduced by two thirds
  • Easy to transport, the system can be supplied unassembled for delivery to remote areas
  • Lightweight system with no cranes or lifting of equipment required



Infiltration Tank

The Atlantis Flo-Tank is designed to capture surface water through infiltration. The system works by cleaning and filtering the water before it is allowed to recharge the water table, providing moisture for surrounding vegetation. 

Rainwater Harvesting

The Atlantis Flo-Tank is effective in providing a regular clean water supply for domestic and commercial applications by capturing water from landscaped areas through surface infiltration and from roof areas. The clean water is retained within the storage area away from harmful UV light and heats the remaining cool underground for re-use. 

Detention Tank

Water is captured from the roof and paved areas are filtered before entering the the Atlantis Flo-Tank, which is then slowly released through the discharge control unit.