Underground Water Storage Systems

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Underground water storage systems are the perfect solution for limited space applications or where you want to hide your rainwater storage.

You should consider an underground water tank for rainwater storage if:

  • you have limited space available for your water tank
  • you want to hide your rainwater tank
  • you are looking for a “central storage” area that will allow you to harvest rainwater from the whole of your roof

Underground Water Storage System

Why have your precious backyard or recreation area taken up with unsightly above ground storage tanks, when you can install an all new and innovative “Aquaflo” storage system inground?

All Pumps offer different types of underground water storage systems such as Aquaflo underground water storage tanks, SPEL StormChamber and SPEL Ecoceptor.

Specifications

aquaflo-specifications-underground-water-storage-tanks
Horizontal ModelsLitres“A”“B”“C”WeightManhole
AF 5H5,0003,500 mm2,150 mm1,900 mm400 kg1 @ 900 x 600 mm
AF 7.5H7,5004,500 mm2,150 mm1,900 mm550 kg1 @ 900 x 600 mm
AF 10H10,0005,500 mm2,150 mm1,900 mm700 kg1 @ 900 x 600 mm
AF 15H15,0007,500 mm2,150 mm1,900 mm950 kg1 @ 900 x 600 mm
AF 20H20,0009,500 mm2,150 mm1,900 mm1,200 kg1 @ 900 x 600 mm
AF 25H25,0002,150 mm2,150 mm1,900 mm1,400 kg1 @ 900 x 600 mm
AF 30H30,00013,500 mm2,150 mm1,900 mm1,700 kg1 @ 900 x 600 mm

*Dimensions may change at any time without notice, please contact your All Pumps representative for confirmation.

Installation

The correct appraisal of site conditions is essential before installation of the Aquaflo Storage System. The installer must recognise that these systems when empty will float on approximately 50 mm of water. The upward thrust at the base of the tank, when fully immersed in water could exceed 69 000 KPA.

If there is any likelihood of water ingress to the ground where the tank is to be buried – e.g.: Tidal conditions, saturated ground, during heavy rain and/or flooding or run-off water from other sources. Pay particular attention to the drainage of the tank excavation.

Where tanks are installed under adverse site conditions, the utmost care is required to prevent any chance of the tank being forced out of the ground by upward pressure of water. This can occur if the excavation base is not properly drained.

For installations where water table conditions are above the tank, it is recommended that the tank be held in the ground with either concrete or an anchoring system – See Engineers’ Department for more details and calculations.Where excavations width and/or depth are an issue, install shoring to meet the relevant National Standards.These notes should be read together with the following recommended installation details drawings shown in 12 Easy Steps.

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all-pumps-aquaflo-underground-storage-systems-brochure

underground-water-storage-systems

Benefits Over Other Storage Methods

  • Helps counter drought conditions by maintaining groundwater base flow to streams.
  • Superior load ratings for trafficable areas.
  • Maximised volume for efficient storage void ratio.
  • The least cost underground alternative.
  • The lowest installed cost of any modular storage technology.
  • Burial depths up to over 9m.
  • Layered installations possible for restricted surface area sites.
  • Superior design eliminates costly and complicated header manifold systems.
  • Can be utilised for conveyance in remote locations.
  • Recycled HDPE construction allows smaller excavation and decreased footprint.

SPEL StormChamber Specifications

  • Storm Chamber storage = 2.12m3
  • Design storage capacity = 3.26 to 4.56m3
  • Length = 2.59m
  • Width = 1.52m
  • Height = 86.36cm
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all-pumps-spel-environmental-stormchamber-brochure
all-pumps-spel-environmental-storm-chamber-install-manual-brochure

Benefits Over Similar Technologies

StormChamberOther Technology
Header pipe manifold in flow/out flowNoYes
AASHTO H-20 wheel load ratingExceeds by 4xMeets
End plates to purchase & installNoYes
Need for pre-treatment devicesNoYes
Maximum height of fill9.14m2.44m
Require compacting stone baseNoYes
Two & three layered installationYesNo
Number chambers required40-45% fewer40-45% more
Installed cost & timeSignificantly lessSignificantly more
FootprintSignificantly lessSignificantly more
Excavation, stone, backfillSignificantly lessSignificantly more
Compaction, grading & filter fabricSignificantly lessSignificantly more

Ecoceptor

Independently tested and certified for hydraulic efficiency and the capture of gross pollutants. It seperates and captures gross pollutants, sediments and silt including light liquids which rise to the top of the chamber remaining in the seperation zone. The unique hydraulic treatment pipe is sized to suit specified flow rates.

The SPEL Ecocepte\or transfers the hydraulic force of incoming flows to produce a vortex cleaning action preventing pollutants from discharging the SPEL Ecoceptor can cater to flow rates from 0 – 240 LPS and can fit standard pipe sizes ranging from 100mm to 900 mm. Larger sizes available on request. The 1000 series is of polyethylene construction and larger models of fibreglass construction.

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all-pumps-spel-environmental-ecoceptor-brochure
1000-series-ecoceptor
1000 Series Selection Chart (Weight Approxmately 300kg each)
ModelE.80/102222E.80/103030E.160/103030E.160/103737E.240/103737E.240/104545
Maximum Flow LPS8080160160240240
Inlet mm225300300375375450
Outlet mm225300300375375450
Invert*Level mm900
Overall* Height mm2200
Outside Diameter mm1900
Manhole Opening mm900 x 600
Manhole Quantity1
Max Silt Capacity Litre1200
Max Hydrocarbon Capacity Litre1200
Max Capacity Litre3500
  • *Dimensions may change at any time without notice, please contact your All Pumps representative for confirmation.
  • *Height does not include lid
2000-series-ecoceptor
2000 Series Selection Chart (Weight Approxmately 350kg each)
ModelE.80/202222E.80/203030E.160/203030E.160/203737E.240/203737E.240/204545
Maximum Flow LPS8080160160240240
Inlet mm225300300375375450
Outlet mm225300300375375450
Invert*Level mm900
Overall* Height mm2200
Outside Diameter mm1900
Manhole Opening mm600 x 600
Manhole Quantity1
Max Silt Capacity Litre1200
Max Hydrocarbon Capacity Litre1200
Max Capacity Litre3500
  • *Dimensions may change at any time without notice, please contact your All Pumps representative for confirmation.
  • *Height does not include lid
4000-series-ecoceptor
4000 Series Selection Chart (Weight Approxmately 500kg each)
ModelE.320/403737E.320/404545E.450/404545E.450/405252E.600/405252E.600/406060E.900/406060
Maximum Flow LPS320320450450600600900
Inlet mm375450450520520600600
Outlet mm375450450520520600600
Invert*Level mm1390
Overall* Height mm3000
Outside Diameter mm2000
Manhole Opening mm600 x 900
Manhole Quantity1
Max Silt Capacity Litre2500
Max Hydrocarbon Capacity Litre1500
Max Capacity Litre7600
  • *Dimensions may change at any time without notice, please contact your All Pumps representative for confirmation.
  • *Height does not include lid
6000-series-ecoceptor
6000 Series Selection Chart (Weight Approxmately 700kg each)
ModelE.900/606767E.1200/606767E.1200/607575E.1200/609090E.1200/609090
Maximum Flow LPS9001200120012001400
Inlet mm675675750900900
Outlet mm675675750900900
Invert*Level mm1690
Overall* Height mm3300
Outside Diameter mm2400
Manhole Opening mm600 x 600
Manhole Quantity2
Max Silt Capacity Litre6000
Max Hydrocarbon Capacity Litre2200
Max Capacity Litre12500
  • *Dimensions may change at any time without notice, please contact your All Pumps representative for confirmation.
  • *Height does not include lid

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