Monolith Tanks
The MONOLITH tank is outstanding with its extremely high stability and loading capacity. Its unusual rectangular design makes it so unique. The tank can be installed easily in very heavy and cohesive ground (e.g. clay) or completely in ground water.
The MONOLITH is lorry driveable (load class SLW 30). The narrow, rectangular construction method makes it especially easy to install, saving earth excavation and back filling materials.
to download our Monolith installation guide
Rewatec Monolith Range

For a free quotation without obligation call 0843 658 1006
Technical Data
| Size | Weight | Inflow* | Overflow* |
|---|---|---|---|
| 2000 litre* | 140kg | 155mm | 255mm |
| 3500 litre* | 180kg | 155mm | 255mm |
| 5000 litre* | 260kg | 155mm | 255mm |
*The usable volume can deviate according to connection variation approx 10% from the nominal volume
*Inflow/Overflow = tank shoulder up to invert level
Advantages of the MONOLITH Tank
- Extremely strong for very difficult ground conditions
- Can be installed in ground water
- Only 1.2m wide, provides easy installation and saves backfilling
- Lorry Driveable (load class D, maximum axle load 11.5 tonnes). Spacer ring required
- 25 year warranty - buy with confidence
Our Monolith tanks are weight tested to 13 tonnes (equivalent to 1.95m of earth)
Narrow Construction

Very narrow construction suitable for small and narrow access or restricted sized gardens
Suitable for Ground Water

With suitable soil coverage the Monolith can be completely inserted in ground water (following installation instructions).

