Underground Tanks from 1,000 to 13,000 Litres – For Rainwater or Wastewater Storage

Our robust underground tanks and cisterns, manufactured from durable polyethylene, provide storage capacities of up to 13,000 litres for rainwater or domestic wastewater. Featuring a seamless construction, they are 100% watertight and supplied ready for installation with pre-mounted DN 100 connections.

The round tank design allows for space-efficient underground installation, making these tanks ideal for properties with limited surface area. Depending on your requirements, tanks are available with or without the Biovitor system – our biological filtration solution that provides chemical-free water treatment and integrated inlet calming.

All tanks can be installed below the frost line, are fully recyclable, and are equipped with a telescopic access shaft and a walkable cover as standard. Optional accessories are available for installations in areas subject to passenger vehicle or truck traffic.

Backed by a warranty of up to 15 years, GreenLife underground tanks offer a reliable and long-lasting solution for sustainable water management. Use our rainwater planning tool to determine the ideal tank size for your project.

Underground Tanks from 1,000 to 13,000 Litres – For Rainwater or Wastewater Storage

Our robust underground tanks and cisterns, manufactured from durable polyethylene, provide storage capacities of up to 13,000 litres for rainwater or domestic wastewater. Featuring a seamless construction, they are 100% watertight and supplied ready for installation with pre-mounted DN 100 connections.

The round tank design allows for space-efficient underground installation, making these tanks ideal for properties with limited surface area. Depending on your requirements, tanks are available with or without the Biovitor system – our biological filtration solution that provides chemical-free water treatment and integrated inlet calming.

All tanks can be installed below the frost line, are fully recyclable, and are equipped with a telescopic access shaft and a walkable cover as standard. Optional accessories are available for installations in areas subject to passenger vehicle or truck traffic.

Backed by a warranty of up to 15 years, GreenLife underground tanks offer a reliable and long-lasting solution for sustainable water management. Use our rainwater planning tool to determine the ideal tank size for your project.

1,000 liter underground tank - incl. dome and cover, with optional accessories

Accessories: No accessories

Compact, lightweight, and durable cistern for reliable rainwater storage in a small space.

€549.00

Details

2,100 liter underground tank - incl. dome and cover, with optional accessories

Accessories: No accessories

Space-saving cistern made of durable PE for reliable rainwater harvesting on small properties.

€699.00

Details

2200 Liter Erdtank – unterirdischer Regenwasserspeicher

2,200 liter underground tank - incl. dome and cover, with optional accessories

Accessories: No accessories

Space-saving cistern for underground rainwater harvesting, featuring a durable, seamless PE tank body and flexible configuration options.

€1,169.00

Details

3200 Liter grundwasserstabiler Erdtank ohne Zubehör

Ground tank 3,200 liters, groundwater-stable - incl. dome, optional with accessories

Accessories: No accessories

An exceptionally durable PE cistern designed for demanding installation conditions and long-term use.

€1,949.00

Details

3,300 liter underground tank - incl. dome and cover, with optional accessories

Accessories: No accessories

Durable, pre-assembled cistern for independent rainwater harvesting—long-lasting, flexible installation options, and Made in Germany.

€1,469.00

Details

Erdtank 4700 Liter Schrägansicht von oben

4,700 liter underground tank - incl. dome and cover, with optional accessories

Accessories: No accessories

Durable rainwater storage tank for sustainable rainwater harvesting, featuring long-lasting PE construction and flexible configuration options.

€1,929.00

Details

6,500 liter underground tank - incl. dome and cover, with optional accessories

Accessories: No accessories

Robuste Zisterne für effiziente Regenwassernutzung mit langlebigem PE-Kunststoff und flexibler Ausstattung.

€2,349.00

Details

9,400 liter underground tank system - incl. dome and cover, with optional accessories

Accessories: No accessories

Ready-to-connect cistern duo – for greater capacity and more independence. Made of durable, recyclable PE, Made in Germany.

€3,859.00

Details

zwei miteinander verbundene Erdtanks, insgesamt 13000 Liter Volumen, Ansicht seitlich von oben

13,000 liter underground tank system - incl. dome and cover, with optional accessories

Accessories: No accessories

Two pre-assembled, sturdy PE cisterns for greater water self-sufficiency; durable, relatively lightweight, and easy to install.

€4,699.00

Details

Underground Tanks from 1,000 to 13,000 Litres – For Rainwater or Wastewater Storage

Underground Tanks from 1,000 to 13,000 Litres – For Rainwater or Wastewater Storage

Filter products

Our Service Hotline

1,000 liter underground tank - incl. dome and cover, with optional accessories

2,100 liter underground tank - incl. dome and cover, with optional accessories

2,200 liter underground tank - incl. dome and cover, with optional accessories

Ground tank 3,200 liters, groundwater-stable - incl. dome, optional with accessories

3,300 liter underground tank - incl. dome and cover, with optional accessories

4,700 liter underground tank - incl. dome and cover, with optional accessories

6,500 liter underground tank - incl. dome and cover, with optional accessories

9,400 liter underground tank system - incl. dome and cover, with optional accessories

13,000 liter underground tank system - incl. dome and cover, with optional accessories