Rainwater harvesting – underground and overground
Whether you’re collecting rainwater underground or overground, GRAF and GARANTIA offer a variety of solutions to help you use rainwater efficiently. Discover the right option for your needs.
Rainwater harvesting underground: GRAF
Rainwater harvesting overground: GARANTIA
When greater storage capacity and underground integration are required, GRAF offers high‑performance underground Rainwater tanks for your garden.
For anyone who wants to collect rainwater easily and overground, GARANTIA offers stylish overground Rainwater tanks.
Rainwater harvesting underground by GRAF
Underground rainwater harvesting systems from GRAF make ecological and economic sense. Up to 50 % of drinking water can be saved, preserving groundwater reserves and taking the strain off wastewater treatment systems. The flat Platin tank with a volume of 1,500 L or more is easy to install. The large Carat XXL tank with a volume of up to 122,000 L can handle a large rainwater requirement. GRAF complete packages provide everything you need for professional rainwater harvesting. Whether for garden or household use, with pedestrian or vehicle loading – everything is possible.
Find the right underground rainwater tank
Unsure which tank is right for you? Explore our product advisor tanks:
Practical rainwater harvesting systems
Discover how our rainwater harvesting systems are designed and which components are essential for effective operation.
Tanks & Packages
Our range of tanks offers distinct advantages: the flat Platin tank, with capacities starting from 1,500 l, is easy to install. The large Carat XXL tank meets even high rainwater demand, with capacities of up to 120,000 l. Our complete packages provide everything you need for professional rainwater harvesting.
