• -5%
Octagon rainwater tank 4000 l
  • Octagon rainwater tank 4000 l
  • Octagon rainwater tank 4000 l
  • Octagon rainwater tank 4000 l VS60
  • Octagon rainwater tank 4000 l
  • Octagon rainwater tank 4000 l VS60

Octagon rainwater tank

7,122.00 PLN 5%
6,765.90 PLN tax incl
5,500.73 PLN tax excl

Lowest price in the period of 30 days before current promotion: 6,409.80 PLN +6%

The lowest price of the product 6,765.90 PLN in day 19.04.2024

Lowest price in the last 30 days

OTGN0400
Capacity:
Delivery time 7-14 days
Ask about the product
  • Octagon flat rainwater tank
  • Easy installation in difficult groundwater conditions
  • Capacity from 4,000l to 21,500l

Octagon rainwater flat tank

Underground rainwater tank with a flat, robust construction

The Octagon is a flat underground tank for collecting rainwater, municipal sewage or water for firefighting purposes. The Octagon tank has a lightweight and durable construction which contributes to the ease of installation. The tank has been patented for its unique construction. The Octagon has a high mechanical strength, which makes it suitable for foundation in difficult ground conditions and groundwater. The tank comes with a 10-year warranty. The Octagon is manufactured from pure polyethylene using the rotomoulding method. 

We also offer complete sets for using rainwater in the garden: STANDARD GARDEN SYSTEM WITH OCTAGON TANK

Advantages of the OCTAGON tank:

  • Acceptable installation in difficult soil and water conditions (according to the rules in the installation instructions)
  • Low height - shallower excavation, less earthworks
  • Flat, durable tank construction
  • Can be buried up to 1.5 m (ground level)
  • Low weight, simple installation
  • Can be loaded with car traffic when equipped with a kit for this purpose
  • Made of monolithic pure polyethylene
  • 3 connections ø110 mm and inspection hole DN600 in each tank.
  • Dedicated place for making the spigot for the battery connection

Possibility of foundation in groundwater
YES
(max. 1.0 m above the bottom of the tank)
Possibility of foundation in soils with low permeability
YES
Max. ground cover [m]
1,5
Car traffic over the tank
YES
Truck traffic over the reservoir
NO

Technical dimensions:

Capacity [l]
Lenght [mm]
Width [mm]
Body height [mm]
Height with flange [mm]
Inspection hatch
Connections
Weight [kg]
4 000
2450
2450
1075
1375
DN 600
3x DN 110
155
7 500
4480
2450
1075
1375
DN 600
3x DN 110
305
11 000
6510
2450
1075
1375
DN 600
3x DN 110
455
14 500
8540
2450
1075
1375
DN 600
3x DN 110
605
18 000
10570
2450
1075
1375
DN 600
3x DN 110
755
21 500*
12600
2450
1075
1375
DN 600
3x DN 110
905

The rising pipe and lid must be matched to the tank, which you will find in the accessories section. 
*Order realization, cost and capacities from 21,500 l available on individual enquiry.
Grade
star star star star star
2022-07-01

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