Rainwater tank ROCKO 2300

in-groundPE

Overview
The Rocko Ø2300 is the largest model in the Rocko series, engineered for applications with high water demand such as large residential complexes, commercial properties and agricultural use. Its vertical design delivers very high storage capacity while minimizing footprint and facilitating installation.

Construction and materials
Manufactured as a single-piece moulding from polyethylene (PE), the tank provides a watertight, corrosion-resistant structure. Wall thickness ranges from 8 to 14 mm and the tank incorporates stabilizing reinforcing ribs to withstand high soil loads and external stresses. The unit is suitable for underground installation or above-ground freestanding use.

Main features

• Material: polyethylene (PE), single-piece construction
• Wall thickness: 8–14 mm
• Reinforcing ribs for stability and protection in high groundwater conditions
• Suitable for underground installation or above-ground freestanding use
• PE manhole cover DN600 with gasket and hinged closure included (load-bearing capacity up to 200 kg)
• Connection openings: 1xØ800 and/or 2xØ600 depending on model
• Anchor holes for secure fixing to a concrete slab if required
• PE ring for simple installation of extension rings to adapt height to site conditions

Accessories / included items (basic package)

• PE manhole cover DN600 with adapter, gasket and hinged closure
• Standard connection openings as specified per model

Technical specifications and dimensions (available sizes)
Volume [L] | Code | Dimensions Ø x H [mm] | Cover | Weight [kg]
6,000 | 7100067340 | Ø2300 x 2400 | 1xØ800 / 2xØ600 | 212
7,500 | 7100067350 | Ø2300 x 2750 | 1xØ800 / 2xØ600 | 243
8,700 | 7100067360 | Ø2300 x 3100 | 1xØ800 / 2xØ600 | 274
10,000 | 7100067370 | Ø2300 x 3500 | 1xØ800 / 2xØ600 | 306

Advantages

• Very large storage capacity suitable for high water demand
• Space-saving vertical design
• Easier transport and installation compared with alternative systems
• Corrosion-resistant, 100% recyclable PE material
• Verified mechanical strength and stability (independent certification referenced)
• Maintenance access via DN600 manhole
• Height adaptation possible with dome shortener and extension rings

Installation notes
The Rocko Ø2300 requires a relatively smaller excavation pit and less backfill due to its vertical shape. Anchor holes are provided for fixing the tank to a concrete slab when anchoring is necessary (e.g. high groundwater). Height can be adjusted on site using the dome shortener and PE extension rings. Maintenance and cleaning access is provided through the DN600 manhole.

FAQ — key points

• Applications: large households, apartment buildings, commercial properties and agricultural use
• Buried stability: 8–14 mm wall thickness with reinforcing ribs ensures resistance to soil loads and external forces
• Height adjustment: possible via dome shortener and/or extension rings (PE ring)
• Maintenance: DN600 manhole allows inspection, cleaning and service access

Technical specifications

• Model name: Rocko Ø2300
• Material: 100% polyethylene (PE), single-piece moulding
• Wall thickness: 8–14 mm
• Reinforcing ribs: both sides for enhanced stability
• Installation: underground or above-ground freestanding
• Lid: PE manhole cover DN600 with gasket and hinged closure (included); load-bearing capacity up to 200 kg
• Connection openings: standard 1xØ800 / 2xØ600 (depends on height/volume)
• Anchor holes: provided for anchoring to concrete slab if required
• PE ring: for installing extension rings to adapt height to terrain
• Available volumes and codes: see table above (6,000 L — 10,000 L)
• Maintenance access: DN600 manhole