99 GBP. Contact Us today 01616671241. This means installation should be at least 2 metres below the ground because pipework depth limits. Attenuation Tanks. Used in landscaped areas, or in trafficked areas up to a Gross Vehicle Weight (GVW) of 30 tonnes. These systems are required where there is a limitation to the quantity of rainwater which can be discharged. The ability of a medium to attenuate sound waves at a given frequency is called its attenuation coefficient (denoted by the Greek letter alpha (α). Stormwater attenuation tanks provide a storage system for rainwater and surface water. The modular cells combine to provide water storage structures to help with localised flood. 2m3 per crate. Our soakaway crates clip together to form a load-bearing underground water storage/attenuation system. As a key part of our overall SuDS offering, our Klargester AquaHold attenuation range offers many benefits over traditional crate systems. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. 50m 2 x (50/3000) = 0. These below-ground rainwater attenuation crates are an ideal solution for surfaces like sand, silt, gravel etc. 00 7,500 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. 61’ x 0. 4 cubic meters 20 Ton Soak Away Crate Attenuation Cells From Storm Master ( 5 x crates = 2 cubic meters ) (380 Litres Capacity) 95. An attenuation tank follows a very simple process to receive, store and release excess rainwater: When there is heavy rainfall that the local systems will struggle to cope with, an attenuation tank is ready to take in the water to help reduce the likelihood of flooding. They allow surface water to be stored in one location and gradually released back to the ground, a bit at a time, at a pace the ground can handle, rather than in one sudden deluge, as happens dur…Stormwater attenuation and infiltration/soakaway crates ACO StormBrixx is a unique and patented plastic geocellular stormwater management system for attenuation and soakaway (infiltration) usage. The Rain Bloc can withstand up to 60T with. 72 £57. Items added to your basket will appear here. One of the major benefits of using stackable crates is that the installation can be completed much faster and without the need to use specialist heavy equipment. 2% Void Ratio. What is the difference between a soakaway and an attenuation tank? A soakaway, as the name. Polypipe Polystorm-R PSM1a Heavy Duty (65 Tonne) Soakaway Crate 1000mm L X 500mm W X 400mm DYour soil type will determine the efficiency of the soakaway system. Get in touch 01753 652 555. 40 Save 20% . (€4,213. 00. Additionally, check your peripherals for hardware issues. This below ground Rain Bloc crate is a simple an effective way to form a Soakaway or attenuation tank. The water stored in the attenuation tank is wrapped in membrane to stop soil particles from entering. From £269. 72 £57. Not only are they more efficient with a larger void capacity (95%) they also have superior structural integrity. We can design and fabricate Attenuation Crate Wrappings in a variety of materials and install on site, should the cell to be lined prove too large or too complex to supply as a prefabricated unit. 95 (£48. View details. JFC’s Attenuation Water Management solutions help control the rate at which water enters the watercourse or storm drain. Stormwater attenuation tanks provide a storage system for rainwater and surface water. For attenuation systems: Position the inflow and outflow connections level with the base of the Aquavoid-Metro structure. Read honest and unbiased product reviews from our users. The stored water inside the attenuation tank is released via a flow-control chamber and is either pumped via a pumping chamber or run-off through a gravity stormwater pipe system. The system has an exceptionally high compressive and tensile strength and bending resistance with a proprietary. Following are the key types of Attenuation systems: Attenuation Pond; Large Size Attenuation Pipes; Attenuation Crates; Rainwater Diffusor. As a simple concept, it works like this. The full Rainbloc attenuation tank kit can be found here. Hewitech design, manufacture and install Attenuation tanks. Our attenuation crates are light, easy-to-assemble and they connect together, which means you can create your required structure. Easy to assemble and install. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. Included with each StormCrate are 2 shear pin connectors (bullets) and 4 connector clips in an orange colour. This can be caused by flow hugging one side of a pipe due to flow around an elbow or flow through a partly. Our soakaway crates clip together to form a load-bearing underground water storage/attenuation system. 1000 x 1000 x 400mm (50 Tonne) Flood Crate Product Code: FC-50 £ 75. The void in the crate holds the stormwater during heavy ra. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. GEOlight® provides green residential amenities with additional run-off capacity – The Quarry, Erith. Designing attenuation storage for redeveloped sites The authors This factsheet has been prepared by Anthony McCloy of McCloy Consulting. However, if you are using them for infiltration, the water will slowly soak away into the groundwater table. Large attenuation tanks are formed from modular soakaway crates as per the example in the image below. Stage 3 - Stormwater is held in the tank. Come on site with us as we film a large attenuation tank installation for a new housing development - Lakeview Quarry in Somerset. The crate structure is surrounded with a permeable non-woven geotextile to prevent any ingress of silt to the crate structure. Complete crate weighs 9kg. Polystorm-R is designed to offer a solution in issues of surface water attenuation, surface water retention or surface water infiltration. the. This makes it robust yet lightweight soakaway solution, giving the product a long life and making yours easier when it comes to installation. ACO RainDrain Channel and Galvanised Grating A 15 - 118mm x 97mm x 1000mm. 00 incl VAT. Our easy-to-assemble crate can be installed beneath gardens, pedestrian areas and driveways with light vehicular tra˛c. Osma Black Aquacell Eco 1000mm x 500mm x 400mm Unit Non-Trafficked. Let us introduce you to this cutting-edge. For attenuation, ensure the tank is surrounded by both geotextile fleece and. £69. 4. One of the major benefits of using stackable crates is that the installation can be completed much faster and without the need to use specialist heavy equipment. This below ground Rain Bloc crate is a simple an effective way to form an attenuation tank. Set your delivery address or collection branch to see what's available. They can be used in trafficked and non-trafficked areas including landscaped, pedestrianised, public open spaces, playgrounds, parking, driveways and access projects. Rated 5 out of 5 stars. Soakaway crates are available from our depots in Yorkshire, Cumbria and Warwickshire. 00. 13. g. There are 5 main variations to choose from, each one offering different features benefits depending on your drainage need and installation environment. This is where our soakaway crates come in. VAT. Save up to 80% of freight costs with EcoBloc light. #collaboration #future #local #caring #career Infrastructure Products Potable Water Supply Geocellular attenuation tanks or attenuation crates are also extremely space efficient, with a typical surface water holding capacity of 95% or above. The issue of water attenuation is an increasingly hot topic, with more occurrences of extreme weather patterns being experienced across the UK. Soakaway are designed and constructed in a very similar way to attenuation tanks and use the same polymer crate system to create the void. from £8. They have an inlet that allows up to 97% of their occupied space to fill with water. My basket. 50 each. A stormwater attenuation tank is designed to collect and store excess surface water run-off from a large storm event. Attenuation crates need to be designed to minimize. Attenuation Tanks are preferred over alternative methods such as soakaway crates. Figure 2: Insertion of attenuation lid on top of the crates. 4m3 per crate) £57. 354mm in length, 708mm in width, 150mm in height. FREE delivery 8 - 9 Nov. Add to Compare. From £3,669. Carlow Concrete are one of the leading specialists in Stormwater Attenuation in both the UK and Ireland. Inc. £54588. 8. Civils & Drainage. 8. 3 Cubic Metre . 2m3 per crate. This soakaway crate has been designed for use in deep applications, subject to regular and heavy traffic loadings, e. The rigid crates are made in black polypropylene (PP) and measure 1200mm (l) x 600mm (w) x 420mm (h) and will hold a maximum capacity of 300 litres gross or a working volume of 285 litres. 00. Soakaway crates can be used for rainwater attenuation or soakaway purposes in commercial and domestic projects. 3. Wavin AquaCell stormwater infiltration and attenuation tanks can be constructed using these modular cells or units to help manage storm water run off and reduce flood risks. 0m x 0. Ordered terram t1000 Good price Good communication Delivered on time Would recommend. 1. Dimensions: 1000mm x 500mm x. Cellular rainwater attenuation module; Swift installation in up to 10 layers; Perfect for residential. 11. Locate and compare Industrial Crating & Crates in Coquitlam BC, Yellow Pages Local Listings. 03. Stage 1 - Stormwater flows into a silt trap (or catchpit) to catch debris, improve water quality & prevent blockages further in the system. • Project Explore, Steetley - Attenuation Pond Lining (15,000m²) Stormwater Management Limited Fleming Road Harrowbrook Ind Est Hinckley Leicestershire LE10 3DU Tel: 01455 502222 Fax: 01455 502223 Email: sales@storm. Next Day Delivery. Flooding can cause significant financial losses and damage. Allows development of difficult sites by using attenuation/water storage. It has a 61 tonnes/m² compressive strength and is manufactured from over 90% recycled material content. From £269. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. Attenuation Tanks. Contact Us today 01616671241. Results and discussion. Buy and sell items locally or have something new shipped from stores. One is EcoBloc Maxx and the other is EcoBloc Light and both are manufactured in Germany from superior quality of medium-density polyethylene or MDPE. It can also be a useful way of harvesting water for other uses such as gardening, car washing and toilet flushing. This document describes the products from Polypipe Water Management Solutions for. Manufactured from recycled polypropylene, the Aquavoid Metro system comprises an interlocking modular cell design which sits on a purpose designed baseplate and can be stacked to create different void sizes. We also offer Polystorm Access and Polystorm Inspect, which allow for. Permeable Paving Slab. Attenuation Tanks. 19m3 per crate. g 760L kit connectors also supplied. 25 metres. Efficient pallet stacking provides quick construction and installation. They can be used in trafficked and non-trafficked areas. Rain Bloc 60 Tonne Soakaway and Attenuation Crate - 0. Offline System AttenuationHere’s a summary of the regulations for the installation of soakaway crates: Should be located at least 5 metres from the wall of any building. Large net storage volume of 287 litres per crate (302. Features & Benefits: Graf Rain Bloc Stormwater Attenuation Crate - 3. CF Civils & Groundworks Ltd have become specialists in crate system design, supply and installation as well as the integration of geo membranes for. The store will not work correctly in the case when cookies are disabled. An attenuation tank is used to capture surface water run-off that occurs during prolonged periods of rain, reducing the risk of localised flooding. Contact. Should not be close to another soakaway or in a location where the water may. Rain Bloc Stormwater Attenuation/Soakaway Crate. FREE shipping and FAST delivery. But, with us you’re guaranteed a tailored service unique to you and your needs. This allows any construction site to release water at a rate that drains can adequately handle, thereby preventing a flood. co. Ideal for retention, attenuation or soakaway applications with a suitable geomembrane or geotextile. This slowed rate of discharge helps to avoid downstream flooding and the erosion of water ways due. What are attenuation crates? Attenuation crates, also known as soakaway crates, are used to control the level of surface water and reduce the risk of flooding. 3 Crates per m3, 60 Tonne Rated. 00Attentuation crate products are currently unavailable online. This StormBrixx product contains: 2 x 0. An offline attenuation system is where the inlet/outlet is connected to the same manhole/inspection chamber. Attenuation Crates. Large attenuation tanks are formed from modular soakaway crates as per the example in the image below. The crates are a single piece and can be easily maneuvered, stacked and placed. The Polystorm range of products and solutions for attenuation and soakaway applications. As a key part of our overall SuDS offering, our Klargester AquaHold attenuation range offers many benefits over traditional crate systems. MWS158 Polystorm-R PSM1A Modular Water Storage Unit 1000x500x400mm (61T/m2 Loading) c/w PSMCLIP. £27. Please contact us for more information on how we can help you. 90. Buried 0. 3 StormCrates per 1m³ storage capacity • Lightweight and easy to install in up to 10 layers • High strength crate with lorry bearing of up to 60 tonnesMax. Access for inspection and maintenance is via Stormbloc ® Inspect chambers and the channels in the blocks allow access for CCTV and cleaning to ensure that the storage volume of the system isn’t reduced by the build up of silts. Crafted from 100% recycled plastic and manufactured within the UK our Rainsmart Ellipse storm and water attenuation crates are buried under earth, gravel or other permeable materials which creates a void space for the purpose of holding rain-water whilst allowing surface water to drain away. 4 m³ with an approx. If the crates are used for attenuation, the water will drain away slowly into the drainage system. This water crate is easy to assemble and can be installed beneath gardens, pedestrian areas and driveways with light traffic. They are modular, so multiple crates can be used for a soakaway system capable of. Graf Rain Bloc Stormwater Attenuation Crate - 3. A soakaway size of 1m3 is sufficient to drain a roof area of approximatley 50m2 under normal ground conditions. This is obviously wrong, because if you move a candle away from a surface in real life, then the surface gets darker. 2 x layer connectors for easier alignment during install. Stormwater Management Brett Martin’s StormCrate55 modular cellular crates are used in storm water retention, attenuation and infiltration applications. Hydrocell Soakaway Crate 62 Ton ( 1 000mm x 500mm x 400mm per crate) . COMMERCIAL SEWAGE TREATMENT PLANTS. com Stormwater Attenuation & Storage Systems | Pipelife With Raineo Stormbox Systems, you benefit from a stormwater retention & storage solution tailored to suit the soil & precipitation conditions of your project. Polystorm-R has been designed to provide surface water retention, surface water attenuation or surface water infiltration as a soakaway solution at a variety of depths in trafficked and loaded areas. Visual and maintenance access can be achieved when used in conjunction with Polystorm Access & Polystorm Inspect. A solution to this is to make the area permeable, for instance by using permeable paving or asphalt, or installing soakaway systems. Open the Asus Armoury Crate, and remove all the apps linked to your profile. 11 ex VAT. 24 Carefully place the attenuation units onto the base panel (following the procedure 3. So, what are the differences between stormwater storage crates for filtration and attenuation? Let’s find out. This Brett Martin StormCrate55 is a modular cellar crate system designed to be used as attenuation cells or for soakaway applications. See full list on pavingexpert. Figure 1: An example of attenuation shoe box manufactured from Landflex AS material with a demo crates inside. It enables engineers to create a blue or green roof drainage layer that gives architects the design flexibility required to create imaginative, multi-functional open. This is where our soakaway crates come in. Maximum installation depth of 5m. Ideal for linking rainwater downpipes. 95% void ratio. . noun. This is provided free of charge from JDP Technical Support. 54 Excl. 855 Litres. The void created by the crates can then fill up with storm water during heavy rainfall conditions. In areas where water storage is not a consideration. The Rain Bloc compact 300 soakaway crate can be used in both infiltration and attenuation systems. Anthony is a Chartered Civil Engineer with considerable experience in water, hydrology, flood risk and drainage, particularly in relation to SuDS design and hydraulic modelling. Dimensions: 1200mm (L) x 600mm (W) x 347mm (H) Crates Per m3: 4. As well as attenuation, the AquaCrate can also be used for greywater storage. DESIGN. This sustainable drainage system or. Our range of Soakaway Crates include the Polypipe Polystorm, Polypipe Polystorm Lite, Aqua Storm and the Brett Martin StormCrate. Attenuation. SEPTIC TANKS. Crate size 1200mm (L) x 600mm (W) x 420mm (D) (3. Brett. The plastic crates have high void to volume ratio to maximise water retention, yet are robust and designed to withstand all types of vehicular traffic. These soakaway crates (Polystorm) clip together to form a load-bearing underground water storage/attenuation system. Inc. 00 £68. These crates are used in a storm water management system to provide temporary storage for. 01753 652 555 CORE TRADE. These plastic products have proven to be an effective solution for many projects and as a result of this success the scale of applications has dramatically. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. Geocellular attenuation or soakaway crates are also extremely versatile, which means they can be configured around site constraints Stormwater attenuation and infiltration/soakaway crates ACO StormBrixx is a unique and patented plastic geocellular stormwater management system for attenuation and soakaway (infiltration) usage. The plastic driveway grid, with its stability and adaptability, revolutionises the way we approach these projects. Attenuation is. They can be used in non-trafficked and trafficked areas, ideal for housing, car parks, driveways, commercial and. where the chances of infiltration is smoother. An attenuation crate stores the water and redirects it to somewhere else. Attenuation cells, (also known as Storm Cells, Soakaway Modules, and Storm Crates) are the modern equivalent of a soakaway. You should receive some clips or ties with the crates. From £269. Rain Bloc Stormwater Attenuation/Soakaway Crate. Efficient pallet stacking provides quick construction and installation. An attenuation tank follows a very simple process to receive, store and release excess rainwater: When there is heavy rainfall that the local systems will struggle to cope with, an attenuation tank is ready to take in the water to help reduce the likelihood of flooding. Stormwater storage crates for filtration Polystorm-R. Faulty devices, like a wireless mouse or headset. The wrapped tank should then be. Buy Polypipe Polystorm R (PSM1A) Soakaway Crate / Attenuation Cell Online at an Amazing Low Price From Easymerchant. A geotextile removes debris from stormwater while the addition of a geomembrane enables water storage when required. 200 to 299. Designing a Crate System for Attenuation. For example, a 50m2 roof area would require a crate soakaway of. The attenuation tank crates/blocks are placed to the predetermined laying pattern, before holes for inlet, outlet and vent pipes are cut to size. Step by Step Attenuation. Reviews. Used in landscaped areas, or in trafficked areas up to a Gross Vehicle Weight (GVW) of 30 tonnes. Grid Size: 50cm x 50cm x 4cm (0. Flooding can cause significant financial losses and damage. 4m in size. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. This crate system can be supplied with an appropriate geotextile layer to wrap the crates for infiltration systems and attenuation systems. ON BACK ORDER - Please contact us for availability and alternatives. Add to basket. 4. 00 each. The collected storm water then drains away slowly into the drainage system when the crate is used for attenuation, or, soaks away slowly into ground water table when the crate is used for infiltration. Void Ratio: 95%. . the property of something that has been weakened or reduced in. Excellent filtration and drainage properties for trench lining. Rainsmart Soakaway Set Assembled - Heavy 1 Cubic Metre . Documentation. Contact Us today 01616671241. £204. It is supplied fully assembled, which makes installation much easier to plan and complete. Large net storage volume of 287 litres per crate (302. 4 StormCrates per 1m³. Polystorm-R has been designed to provide surface water retention, surface water attenuation or surface water infiltration as a soakaway solution at a variety of depths in trafficked and loaded areas. Account. 00. A) CRATE SYSTEM. 29 ex VAT) £44. 19 various@a3 do not scale - if in doubt ask this document is supplied in strict confidence and must not be lent, reproduced or disclosed to any third party without the written consent of graf uk limited notes:-Rainwater Soakaway Crate Geocellular Attenuation Tank 200L Underground Rain Water Storage Tank About Us Shenzhen Doctor Rain is a professional manufacturer for Geocellular Modular Rainwater Harvesting Tank System ( soakaway crate / attenuation crates / infiltration tanks), established in 2013, with two large plants in Songgang of. In “hybrid” storm management systems SDS engineered water storage and treatment devices below-ground combine with, enhance the performance and extend the lifespan of vegetative SuDS materials above-ground. uk. The crates have multiple integral shear connectors built into each unit that locate into the crate below. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. 50 kg. 1000mm x 1000mm x 400mm each crate holds 0. This enables Polypipe to supply fully integrated below ground drainage elements, which may be composed of a number of differing systems, each chosen to suit the proposed location. Contact Us today 01616671241. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. This Polypipe PSM1A soakaway crate, also known as Polystorm-R is designed for not only soakaway applications but also for attenuation cells. From £269. Quantity: 25 Year Guarantee. Geocellular attenuation tanks or attenuation crates are also extremely space efficient, with a typical surface water holding capacity of 95% or above. Ex VAT Inc VAT. Often referred to as Terram, this geotextile is most regularly used in SUDS systems including attention & soakaway crates projects due to its high specifications and performance qualities. This non-woven protection fleece. FREE Delivery. £36. The Polystorm 8 Step Guide is designed to provide guidance to design the perfect system for retention, attenuation or soakaway at a variety of depths. This helps stops soil from entering and clogging up the system. Quick view. KLARGESTER AQUAHOLD SM05 - 5,000 litres. The Pelican Attenuation system is perhaps the UK's first complete attenuation tank system kit. Contact Us today 01616671241. Many first-time buyers of stormwater attenuation crates are often unsure about how deep the system should be. Both for domestic and commercial applications, modern soakaway attenuation crates are in use for the purpose of holding rainwater for a long period primarily. In this video we take yo. AquaCell Core-R has been designed for use in deep applications, subject to regular and heavy traffic loadings, e. Liked by the question poster. This should give you a total impermeable area in. As long as a suitable membrane is used around the crates, water is cleaned as it enters the crate. Multiple crates can be used together to create a larger area and volume soakaway. Your property's total impermeable area is one of the details you would need to provide to work out how many crates you need. £27. £103. Gordon Kinchett, Ordered terram t1000. ACO RoofBloxx Shallow Attenuation Tank - 500mm x 500mm. The Brett Martin Stormcrate 55T Soakaway Crate is the perfect solution for managing stormwater runoff. 12. 84m 3. Rain Bloc 60 Tonne Soakaway and Attenuation Crate - 0. 3. Attenuation Design. The ACO StormBrixx access chamber module allows for a drain-down facility as part of routine maintenance and features pipe connections for outlets up 350mm in diameter. You will be having one bespoke solution to get rid of water logging issues and manage the flood water. ground and the surface area of the crate structure sides and base). Therefore, it is vital that flood prevention methods such as. 5 metres from the boundary. A system of 60 attenuation crates, stacked 400mm high, is capable of storing 11,500 litres of water and can withstand up to 62t/sq m of weight above. “ attenuation in the volume of the sound”. Burnham-On-Sea • Member. Inspectable and jettable with a configuration of RAINBOX® Cube within the system. Latest news & updates for EcoBloc Maxx Crate for Attenuation and Infiltration tanks. These strong, long lasting and eco-friendly crates are ideal for use in residential, commercial, industrial or retail areas including car parks,. Whether we have too much or not enough, it is as much a life giving resource as it can be life threatening. 22 ex VAT) View Details. 2021 various@a3 p1preliminary for approval ap05. 21 inc VAT Was: £0. Where ground has good soakage (such as sand/gravel) then the size/volume of a crate type soakaway can be calculated as follows: Volume = Roof area being drained x (50mm rainfall rate per hr/3000). 5m x 0. Find useful information, the address and the phone number of the local. Rain Bloc Stormwater Attenuation/Soakaway Crate. Includes 2 Shear Pin Connectors, and 4 StormCrate55 Connectors. The CORE WATER crate is a step forward in drainage technology; advancing from the old-fashioned, inefficient soakways filled with hardcore and building waste, the crate provides a safe and intelligent solution to rainwater management. A stormwater attenuation tank is designed to collect and store excess surface water run-off from a large storm event. Stormwater storage crates are perfect for filtration or attenuation. ACO RoofBloxx Reservoir Tray Wall Extender Joiner - 60mm. The effects of climate change are creating an unprecedented demand for Sustainable urban Drainage Systems (SuDS). The crates are a single piece and can be easily maneuvered, stacked and placed. With our state-of-the-art technology and innovative designs, StormGuard+ is set to redefine how rainfall affects areas prone to flooding or with minimal drainage. 9 Cubic Metre . The stored water inside the attenuation tank is released via a flow-control chamber and is either pumped via a pumping chamber or run-off through a gravity stormwater pipe system. Stormwater crates are installed below ground and are used to control the flow of surface water when there is extreme rainfall. Ex VAT Inc VAT. Fig. VAT. Attenuation is the term used to describe the reduction of a force, effect or value. The RAINBOX® Cube system is designed for use in non-trafficked and trafficked areas (with a Gross Vehicle Weight of 60 tons), and can be installed in soakaway (infiltration) or. The level of released water must be calculated to flow at the correct rate as this. Latest news & updates for RainBloc Crate for Attenuation and Infiltration tanks. Contact Us today 01616671241. The StormMaster Heavy Duty Soak-away and Attenuation Crate is an extremely strong water permeable unit with a large storage capacity. 42m3 StormBrixx crates (in four pieces) 8 x side panels for lateral support. 72 £57. cars and HGV 's. Visual and maintenance access can be achieved when used in conjunction with Polystorm Access & Polystorm Inspect. The installation is warrantied for 30 years as the membrane is wedge welded and the joints air tested. This is where our soakaway crates come in. A soakaway is really just an area where excess water can percolate. So you'll need 4 alternators per 3 motors. APPLICATIONS • Landscaped areasAttenuation Tanks. The Rainbox 3S boxes arrive flat-packed for more efficient shipping and less CO2 emissions. Soakaway & Attenuation Crates Silt Filter Chambers Stormwater Attenuation Tanks. As part of a heavy water or. Comprising a shallow, high-strength, adjustable. 19m3 per crate. If you have a special requirement or any questions, please contact us on 01430 430 529 or email enquiries@gwapipes. Both are used to create a geocellular interlocking system designed for shallow groundwater storage or infiltration, replacing the traditional aggregate sub-base. to join crates together to create an attenuation tank. This enables Polypipe to supply fully integrated below ground drainage elements, which may be composed of a number of differing systems, each chosen to suit the proposed location.