Structures are constructed out of aluminium, a light weight material which from a cost perspective remains very stable over time.
- The dimensions of this ballast system are 1x1x1.2 m
- Net weight of aluminium frame: 67.3 kg
- Tank net weight: 25 kg
- The tank can hold up to 500 litres of water or other material
The tank is filled at the top by hose and emptied through a bung in the bottom.