4rain rainwater tanks

Rainwater tanks underground

Note: The video is an example of a tank installation, please refer to the installation instructions for the respective tank.

FLAT S Flat tank

The perfect do-it-yourself tank

  • Flat design for little excavation an inexpenisve installation
  • Easy handling right into the construction pit due to the low weight of only 80 kg (1.500 l)
  • Including tank dome system for frost-proof installation
  • Ready for connection through pre-assembled  lip seals
  • Doem shaft can be rotated 360 degrees for variable, easy installation
  • Manhole extension can be shortened for easy adaption to the top of the terrain
  • Tank system protected against seepage water
  • Tank cover childproof and accessible
  • Can be expanded as required using a plug-in connection system
  • 100 % recyclable material

Scope of supply:

 

  • Flat tank system with one connecting hole and integrated DN 100 (4") sealing
  • Shaft extension with two connecting holes and integrated sealings
  • Childproof tank cover
  • Connecting set incl. drill (from 3,000 l (793 US gal.))

 

Instructions Rainwater tanks
PDF 4.91 mb
Dimension drawing Flat S tank system 1500 l
PDF 320 kb
Dimension drawing Flat S tank system 3000 l
PDF 470 kb
Dimension drawing Flat S tank system 4500 l
PDF 618 kb
Dimension drawing Flat S tank system 6000 l
PDF 749 kb

1.500 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295120 1500 2100 1320 750 80

3.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295121 3000 2100 2640 750 160

Set consists of 2 tanks 1,500 l

4.500 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295122 4500 2100 3960 750 240

Set consists of 3 tanks 1,500 l

6.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295123 6000 2100 5280 750 320

Set consists of 4 tanks 1,500 l

FLAT M Flat tank

The perfect do-it-yourself tank

  • Flat design for little excavation an inexpenisve installation
  • Easy handling right into the construction pit due to the low weight of only 80 kg (1.500 l)
  • Including tank dome system for frost-proof installation
  • Ready for connection through pre-assembled  lip seals
  • Doem shaft can be rotated 360 degrees for variable, easy installation
  • Manhole extension can be shortened for easy adaption to the top of the terrain
  • Tank system protected against seepage water
  • Tank cover childproof and accessible
  • Can be expanded as required using a plug-in connection system
  • 100 % recyclable material

Scope of supply:

  • Flat tank system with one connecting hole and integrated DN 100 (4") sealing
  • Shaft extension with two connecting holes and integrated sealings
  • Childproof tank cover
  • Connecting set incl. drill (from 3,000 l (793 US gal.))
Instructions Rainwater tanks
PDF 4.91 mb
Dimension drawing Flat M tank system 3000 l
PDF 258 kb
Dimension drawing Flat M tank system 6000 l
PDF 360 kb
Dimension drawing Flat M tank system 9000 l
PDF 461 kb
Dimension drawing Flat M tank system 12000 l
PDF 561 kb

3.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295115 3000 2450 1600 1085 115

6.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295116 6000 2450 3200 1085 230

Set consists of 2 x 3,000 l

9.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295117 9000 2450 4800 1085 345

Set consists of 3 x 3,000 l

12.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295118 12000 2450 6400 1085 460

Set consists of 4 x 3,000 l

FLAT L Flat tank

The perfect do-it-yourself tank

  • Flat design for little excavation an inexpenisve installation
  • Easy handling right into the construction pit due to the low weight of only 80 kg (1.500 l)
  • Including tank dome system for frost-proof installation
  • Ready for connection through pre-assembled  lip seals
  • Doem shaft can be rotated 360 degrees for variable, easy installation
  • Manhole extension can be shortened for easy adaption to the top of the terrain
  • Tank system protected against seepage water
  • Tank cover childproof and accessible
  • Can be expanded as required using a plug-in connection system
  • 100 % recyclable material

Scope of supply:

  • Flat tank system with one connecting hole and integrated DN 100 (4") sealing
  • Shaft extension with two connecting holes and integrated sealings
  • Childproof tank cover
  • Connecting set incl. drill (from 3,000 l (793 US gal.))
  • Including 2 lifting eyes per tank
Instructions Rainwater tanks
PDF 4.91 mb
Dimension drawing Flat L tank system 5000 l
PDF 293 kb
Dimension drawing Flat L tank system 10000 l
PDF 421 kb
Dimension drawing Flat L tank system 15000 l
PDF 548 kb

5.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295126 5000 2450 2100 1340 240

10.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295127 10000 2450 4200 1340 480

Set consists of 2 x 5,000 l

15.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295128 15000 2450 6300 1340 720

Set consists of 3 x 5,000 l

Flat XL flat tank

Rainwater tank with high storage volume

  • Available as a single tank or complete kit in 7,000 l and 14,000 l (2 x 7,000 l)
  • Flat design for reduced excavation and cost effective installation
  • Ready to connect with pre-assembled lip seals
  • 100 % recyclable material

Scope of supply:

  • Flat XL flat tank with one connection hole and integrated DN110 lip seal
  • One manhole extension per tank with two connection holes and integrated DN110 lip seals
  • One tank cover incl. child safety lock per tank
Instructions Rainwater tanks
PDF 4.91 mb
Dimension drawing Flat XL flat tank 7.000 l
PDF 332 kb
Dimension drawing Flat XL tank system 14000 l
PDF 554 kb

7.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295170 7000 3300 2100 1340 310

Modularis tank system

Lots of litres for little money

  • Extremely space saving – only 1.8 m2 (19.3 ft²) of base area for 2,500 l (660 US gal.)
  • Low weight of only 87 kg (191.8 lbs) for ease of handling into the pit
  • Incl. tank dome system for frostproof installations
  • Prefitted sealings ready for connection
  • Dome shaft can be turned through 360° for variable, simple installation
  • Dome shaft can get shortened for easy adaptations to the top edge of the ground
  • Tank system sealed against soakage
  • Tank cover childproof and suitable for pedestrian loading
  • Plug-in system for any number of extensions
  • 100% recyclable material
  • Multiple layers of material applied with COEX 3 technology for maximum stability, including hygiene layer for optimal water quality

Scope of supply:

  • Modularis tank system with a connection hole and integrated lip seal DN 110
  • A shaft extension with two connection holes and integrated lip seals for each tank
  • One tank cover including child safety device for each tank
  • Sets consisting of several tanks incl. Connection set an drill
Instructions Rainwater tanks
PDF 4.91 mb
Dimension drawing Modularis tank system 2500 l
PDF 492 kb
Dimension drawing Modularis tank system 5000 l
PDF 755 kb
Dimension drawing Modularis tank system 7500 l
PDF 1019 kb
Dimension drawing Modularis tank system 10000 l
PDF 1.25 mb
Dimension drawing Modularis tank system 12500 l
PDF 1.5 mb
Dimension drawing Modularis tank system 15000 l
PDF 1.76 mb

2.500 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295022 2500 1190 1470 2010 87

5.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295023 5000 2300 1470 2010 174

Set consists of 2 x 2,500 l

7.500 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295024 7500 3460 1470 2010 261

Set consists of 3 x 2,500 l

10.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295025 10000 4610 1470 2010 348

Set consists of 4 x 2,500 l

12.500 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295026 12500 5760 1470 2010 435

Set consists of 5 x 2,500 l

15.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295027 15000 6910 1470 2010 522

Set consists of 6 x 2,500 l

Compact tank system

The low-cost garden solution

  • Low weight of only 65 kg for ease of handling into the pit (1,600 l)
  • Compact tank design, simple and low cost installation
  • Incl tank dome system for frostproof installations
  • Prefitted sealings ready for connection
  • Dome shaft can be turned through 360° for variable, simple installation
  • Dome shaft can get shortened for easy adaptations to the top edge of the ground
  • Tank system sealed against soakage
  • Tank cover childproof and suitable for pedestrian loading
  • Plug-in system for any number of extensions
  • 100% recyclable material

Scope of supply:

  • Compact tank system with one connecting hole and integrated DN 100 (4") sealing
  • Shaft extension with two connecting holes and integrated sealings
  • Childproof tank cover
Instructions Rainwater tanks
PDF 4.91 mb
Dimension drawing Compact tank system 1600 l
PDF 920 kb
Dimension drawing Compact tank system 2650 l
PDF 763 kb

1.600 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295300 1600 2100 1050 1180 65

2.650 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295301 2650 2100 1300 1460 100

Mono tank system

The tank for special needs

  • Monolithic design of 3,000 l (793 US gal.) – 6,800 l (1,796 US gal.) tank
  • Moulded tank dome with prefitted sealings ready for connection
  • Prepared for installation of self cleaning Supra filter technology
  • Tank system sealed against soakage

Scope of supply:

  • Mono tank system incl. moulded tank dome
  • Four connecting holes incl. prefitted DN 100 (4") sealings
  • Childproof tank cover
Instructions Mono tank system
PDF 409 kb
Dimension drawing Mono tank system 3000 l
PDF 85 kb
Dimension drawing Mono tank system 4000 l
PDF 124 kb
Dimension drawing Mono tank system 5000 l
PDF 84 kb
Dimension drawing Mono tank syste 6800 l
PDF 85 kb

3.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295005 3000 2350 1400 1900 150

4.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295003 4000 2420 1500 2050 175

5.000 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295004 5000 2450 1830 2170 230

6.800 l

Order.-Nr. Volume [l] Length [mm] Width [mm] Height [mm] Weight [kg]
295020 6800 2450 2000 2400 290

Herkules-Tank

  • Multi-purpose – aboveground belowground and basements
  • Aboveground: The Herkules Tank is easy to install in your garden. Combined with the established GRAF downpipe filters it’s a perfect way to harvest rainwater.
  • Underground: Combined with the applicable accessories the Herkules Tank can also be installed underground. The tank is groundwater stable up to the top edge of the tank.
  • Basement tank: Due to its size the Herkules Tank fits through a standard doorway (≥ 80 cm). Therefore it’s ideal for basement installation.
  • Awarded product of the year by the German Trade Association for Plastics Processing (FKVV)
  • Fast connection (assembly is effected without screws)
  • Long life due to solid profile packing (lifetime proven over 25 years in laboratory tests)
  • Can be extended as required. Volumes of several 1,000 l are possible using preformed connections and connection points
  • Easy to transport due to low weight and practical size

 

Application:

  • For rainwater harvesting in house and garden
  • For frost-proof installation in the ground (not suitable for vehicle loading) or overground installation in the garden or cellar (fits through every standard door ≥ 80 cm)
  • Can be installed in groundwater and stratum water up to the top edge of the tank with an earth covering of at least 80 cm
Instructions Herkules tank system
PDF 1.02 mb
Dimension drawing Herkules tank system set
PDF 88 kb

1.600 l

Order.-Nr. Volume [l] Height [mm] Ø max. [mm] Weight [kg] Ø [mm]
320001 1600 1600 1350 60 1350

Herkules tank set

  • Multi-purpose – aboveground belowground and basements
  • Aboveground: The Herkules Tank is easy to install in your garden. Combined with the established GRAF downpipe filters it’s a perfect way to harvest rainwater.
  • Underground: Combined with the applicable accessories the Herkules Tank can also be installed underground. The tank is groundwater stable up to the top edge of the tank.
  • Basement tank: Due to its size the Herkules Tank fits through a standard doorway (≥ 80 cm). Therefore it’s ideal for basement installation.
  • Awarded product of the year by the German Trade Association for Plastics Processing (FKVV)
  • Fast connection (assembly is effected without screws)
  • Long life due to solid profile packing (lifetime proven over 25 years in laboratory tests)
  • Can be extended as required. Volumes of several 1,000 l are possible using preformed connections and connection points
  • Easy to transport due to low weight and practical size

 

Application:

  • For rainwater harvesting in house and garden
  • For frost-proof installation in the ground (not suitable for vehicle loading) or overground installation in the garden or cellar (fits through every standard door ≥ 80 cm)
  • Can be installed in groundwater and stratum water up to the top edge of the tank with an earth covering of at least 80 cm
Instructions Herkules tank system
PDF 1.02 mb
Dimension drawing Herkules tank system set
PDF 88 kb

3.200 l

Order.-Nr. Volume [l] Height [mm] Ø max. [mm] Length [mm] Width [mm]
211001 3200 1600 1350 2730 1350
Weight [kg]
60
Dimensiones Herkules tank 1,600 l, Set consits of 2 tanks

4.800 l

Order.-Nr. Volume [l] Height [mm] Ø max. [mm] Length [mm] Width [mm]
211002 4800 1600 1350 4135 1350
Weight [kg]
60
Dimensiones Herkules tank 1,600 l, Set consits of 3 tanks