Roth retention tank 100% retention
Roth retention tanks with 100% retention volume are used for time-delayed drainage of rainwater into the sewer system in accordance with official requirements. The integrated retention throttle regulates and meters the outflow, thereby relieving the sewer system and reducing flood peaks.
The tanks are made of robust, seamlessly manufactured PE-HD and are equipped with a dome shaft, filter, overflow siphon, and pre-assembled throttle technology. The system is completely ready for connection and can be expanded with additional Roth components. The 6000-liter version uses a round storage tank, while all others are based on the flat Twinbloc design.
Komponenten im Überblick
Roth storage tank (Twinbloc or round storage tank depending on size)
Flat design (Twinbloc) or round (for 6000 L)
Made of PE-HD, seamlessly manufactured, 100% impermeable
With DN 600 manhole shaft and walk-on cover
Overflow trap with small animal barrier as standard
Cover that can be driven over by cars optional
Roth's Retention Choke
Floating throttle for discharge regulation
Constant defined flow rate: 0.07–0.50 liters/second
Standard version with 1-inch hose
Other variants (2 inches / 3 inches) available on request
Roth garden filter (expansion package)
Installation in the dome shaft
Filter screen with 1 mm mesh size
Suitable for roof areas up to approx. 150 m²
Maintenance possible via the manhole cover
Technical data
| Model | retention volume | useful volume | Dimensions L x W x H (mm) | Max. height with shaft (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 3500 L | 3500 L | 0 L | 2350 x 2300 x 975 | 1650 | 145 |
| 5000 L | 5000 L | 0 L | 2460 x 2350 x 1350 | 2050 | 195 |
| 6000 L round | 6000 L | 0 L | 2380 x 2310 x 2180 | 2820 | 240 |
| 7000 L | 7000 L | 0 L | 2x 2350 x 2300 x 975 | 1650 | 285 |
| 10,000 L | 10,000 L | 0 L | 2x 2460 x 2350 x 1350 | 2050 | 390 |
Advantages
100% retention: complete tank volume for retention
Relief of the sewer system through delayed drainage
Floating throttle control for consistent discharge capacity
Complete system with filter, overflow, shaft, and cover
Flat storage or round storage depending on volume
Expandable with Roth accessories (filter technology, inspection shaft, retrofit modules)
Easy to connect via DN 100 KG pipe to prepared connection surfaces
Made of PE-HD: durable, corrosion-free, and 100% non-toxic