Code Rainwater Harvesting BlueLine II Retention Tank
Code Rainwater Harvesting BlueLine II Retention Tank


Price per Unit (tank): £1 435.83 + VAT


Key Features

  • Product comes with: BlueLine II Tank, Throttle valve and Siphon complete with overflow all ready for installation. (see below).
  • It is recommended you also purchase the 'Maxi Filter' in conjunction with this product. (see below).
  • Available in four capacities: 2600, 5200, 7600 and 10000 litre.
  • Ecologically friendly polyethylene - 100% recyclable.
  • Seamless, without joints or welding - 100% water tight.
  • Light weight, simple installation.
  • Simply to backfill with gravel and excavated earth.
  • Lorry drivable (load class SLW 30).
  • Can be installed in ground water up to 1/3.
  • Price includes delivery.
  • 25 years warranty.

Code for Sustainable Homes Credits

This rainwater collection system can contribute towards:-

  • Indoor Water Use (WAT1) - up to 5 credits
  • Surface Water Run Off (SUR1) - up to 2 credits

*when used and incorporated into appropriate systems. Site and system specific.

Dimensions and Weight

2600L - 2400mm(L) x Ø1360mm(W) x 1590mm (Height - including shaft entrance) / Weight - Approx. 90kg.

5200L - 2400mm(L) x Ø2010mm(W) x 2250mm (Height - including shaft entrance) / Weight - Approx. 160kg.

7600L - 2960mm(L) x Ø2310mm(W) x 2330mm (Height - including shaft entrance) / Weight - Approx. 220kg.

10000L - 3340mm(L) x Ø2310mm(W) x 2330mm(H) / Weight - Approx. 340kg.

Technical Data

Tank Litre Shaft Height Connections Weight Inflow/Outflow
2600 260mm 3 DN 100 ca. 90kg 410 / 560mm
5200 270mm 3 DN 100 ca. 160kg 425 / 575mm
7600 80mm 3 DN 100 ca. 220kg 235 / 385mm
10000 80mm 3 DN 100 ca. 340kg 235 / 385mm

*(DN 100 = 110 mm/4“) **top edge entrance shaft to pipe base


This product comes installed with some accessories. Please see details of the pre-installed accessories as well as extras such as tank covers and shaft extensions. Please note 'DN' represents 'Diameter Nominal' which is the diameter in millimetres.

Pre-Installed Features

Overflow Siphon with Rodent Protection

Overflow Siphon with Rodent Protection

  • Suction effect by beveled edge overflow, floating particles are removed.
  • Stops odours when you connected to a soakaway or mains sewer.
  • Extra deep design protects against evaporation.
  • Special grid made of stainless steel protects the tank from rodents.
  • Made of environmentally friendly polyethylene, DN 100 (110 mm/4“).


Tank Covers

Walk-On Covers


Top CoverTop Cover Example

Made of robust PE, double-walled, DN 600 (600 mm).

Twin Cover (with distribution points)

Twin Cover (including distribution points)Twin Cover (including distribution points) Twin Cover (including distribution points)

Twin Cover (No taps)

For garden systems: In the PE tank cover a brass double water connection is integrated (click system), DN 600 (600 mm).

Twin Cover (without water connection)Twin Cover (without water connection)

The tank cover has an internal cover, for an easy and quick access to the tank.

Professional Child Locks

  • All walk-on versions of tank covers are provided with two professional child locks. The special fastener (rotary mechanism from stainless steel) with two specially strong safety loops can be installed easily and quickly.

Child Lock

Driveable Covers

Complete Car Set

Complete Car SetComplete Car Set

  • For all tanks.
  • Max. axle load 2.2T
  • Total height: 700 - 1100 mm

Consists of: Steel cover, Shaft extension BS 60 incl. Rubber Seal, spacer ring incl. Rubber Seal for the load separation.


Shaft Extensions

  • PE shaft extensions suitably for all tanks.
  • Extends the entrance shaft for deeper installation of the tank.
  • For a deeper installation the shaft extension VS 20 or VS 60 (VS 20 and VS 60 are not stackable), can be connected to the spacer ring.
  • Drain gutters avoid the entering of surface water into the tank.
  • Sealed to prevent ground water seepage (not for pressurised water).
  • Variable height adaptation by simple sawing.

VS 20

Shaft Extension VS 20

Height 250 mm, Ø 600 mm, including Seal.

VS 60

Shaft Extension VS 60

Height 635 mm, Ø 600 mm, including Seal.


Shaft Example


Spacer Ring

Spacer Ring

Spacer Ring

  • The spacer ring can be fitted to achieve a greater depth.
  • Height 600 mm, Ø 600 mm.
  • Including Rubber Seal, can be shortened by sawing.


Maxi Filter

The filter basket prevents dirt particles from entering the rainwater to the tank. The result is clear and clean rainwater for the utilisation in house and garden. The filter basket is provided with a handy lift-out device.

Pre-Filter MAXI Pre-Filter MAXI Extension (extension)

  • Recommended for roof areas up to max. 350 m2.
  • 100 % water yield.
  • Very suitable for garden, pond and drainage arrangements.
  • Fine filtering, 0.9 mm mesh width, also suitable for house systems.
  • Narrow construction - simple installation, small cover.
  • Inflow and outflow DN 100 (110mm/4“).
  • Housing and cover made of robust PE.
  • Can be extended (see second product picture). Features: Can be shortened Dimensions: Ø 350 mm, height 570 mm.
  • Optional driveable cover.
  • Measurements: Ø 350 mm, height 645 mm.


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