ACO Pty Ltd. These crates are used in a storm water management system to provide temporary storage for rainwater runoff. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. 65 Incl. This allows for a 150mm base layer of sharp sand, 150mm of sand or gravel sidefill all around the outside of the crates. Introduction: Attenuation cells, (also known as Storm Cells, Soakaway Modules, and Storm Crates) are the modern equivalent of a soakaway. Find high-quality products at unbeatable prices. This product can bear up to 62 tonnes and is 1m x 0. Delivery. 300L. These crates are used in a storm water management system to provide temporary storage for rainwater runoff. Most people associate the use of modern soakaway crates with infiltration use. Extensive use of this type of storm water attenuation module has helped relieve pressure on conventional surface water drainage systems in line with the Sustainable Urban Drainage Systems (SUDS) program advocated by the Environment Agency. Key Benefits of the PSM1A Polystorm-R Crate: Suitable for both attenuation and soakaway systems; 100% Recyclable; Only 4 StormCrates per 1m³; Load bearing strength of. 0 /5 · 0 reviews · Contact Supplier. Weight: 16kg/tank. Our RecoCrate range of recycled plastic drainage crates are lightweight modular cells with a high void ratio which can be used for creating underground water storage systems and attenuation systems for landscaped areas. Polystorm: an 8 Step Guide. Of our clients recommend us. A soakaway crate is designed to send water into the soil, while an attenuation tank stores and redirects it to a watercourse (river, lake or reservoir). PRODUCT DETAILS: Model No. Great for pedestrian and vehicular areas beneath. Try to ensure that the sides and bottom of the excavation are straight and square. green amenity areas). 250 ft³)/TruckThis rainwater attenuation tank kit comprises the following: Rainbloc crates (1200x600x420mm, 95% void) (select dimensions required) 1 x 1mm Polypropylene Shoe Box Liner to form a sealed tank (not a soakaway) Separate lid liner (to be tape joined) Double sided tape to join the two sections together Two part 300g/m² geotextile. Rainwater attenuation crates are used for a variety of uses. stormwater in both attenuation and infiltration schemes. Cost effective, particularly when used as a hybrid, value engineered system. This design allows you to slowly release water into storm water drains with the help of a. From £3,669. Crate Class: Light/Medium Duty. 50. Buy it now. Dimensions: 1200mm x 600mm x 347mm. A major retail and leisure complex in Northamptonshire has enhanced its sustainability credentials by using crates from ACO Water Management’s StormBrixx geocellular stormwater attenuation and soakaway (infiltration) system to promote extensive tree growth. For advice on selecting the right product for your project contact our expert team at: klargester-web@kingspan. Figure 4: Dimensions of Attenuation Crate Used (Water Management Solutions: Modular Cell Systems, 2011) tanks have land usage implications and this is not ideal in an urban envi-ronment. Buried with 0. Attenuation crates need to be designed to minimize. In the tank is method of releasing storm water at a rate the drains can handle without backing up. Stormwater Attenuation Tank Installation in Belvedere, South East London contains 'Crabtree Manorway North is a large-scale, new-build industrial esta. Reviews. We can also offer an installation service if required. The first step in preparing for the installation of your soakaway is to excavate the area for a soakaway crate and a trench in which the drainage pipe will sit. Stormwater attenuation and infiltration/soakaway crates ACO StormBrixx is a unique and patented plastic geocellular stormwater management system for attenuation and soakaway (infiltration) usage. 5kg. Attenuation is the term used to describe the reduction of a force, effect or value. The crates are a single piece and. Explore. 5m incorporating a 150mm sump. CubicM3 is Ireland's leading provider of StormTech stormwater attenuation solutions with over 2,000 systems installed across the country. Leiyuan Greening Solution is Underground Stormwater Modules, Green Roof Trays, Horse padduck mud control grids and other plastic materials manufacturer from China. What sets this Polystorm Crate apart is its efficient interlocking mechanism. Used as a soakaway, rainwater collected through pipes from a roof and/or road. So how does it work: half of the attenuation tank takes surface water run-off and acts just as a regular attenuation tank, while. SOAKAWAY CRATES FOR DRAINAGE SYSTEM. Size: 3. It means we first capture the stormwater and store it in an underground tank which made up of a lot of geocellular unit modular tank, and then release the water in a slowly way. Max. As the crate structure fills, water begins to exfiltrate from the tank into the surrounding ground. 5 Per m3. Quantity. £49. Bespoke stormwater attenuation tanks. oh and don't forget we price match on most products! Storm water attenuation crates allow you to store large volumes of water which can then be slowly released into the surrounding soil. Minimises risk of flooding and stores water (water to SUDS requirements) 400-litre capacity (2. The RainSmart® modular tank system is suited for subsurface infiltration, retention and detention stormwater applications. 00 7,500 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. An impermeable geomembrane liner is then installed and the attenuation crates are positioned inside that. Leiyuan - Model M2015S - Infiltration Tank - Geocellular, for. Efficient pallet stacking provides quick construction and installation. Geocellular attenuation tanks or attenuation crates are also extremely space efficient, with a typical surface water holding capacity of 95% or above. Expressing attenuation storage volumes as m3 2for each m of developed site area Approaches to determining storage volumes Understanding the fundamentals of attenuation storage design Prior to undertaking storage calculations it is important to understand a few of the basics of attenuation design. 3 crates per m 3. Storage capacity of 217 litres. Our stormwater attenuation and. From £3,669. Four StormCrates per 1m³; 95% void ratio Here at Drainage Superstore, we have a number of soakaway crates to choose from. Skip to content. £69. £69. polypropylene soakaway crate for stormwater drainage storage. Step 1Rain Bloc Stormwater Attenuation/Soakaway Crate. ACO. Stormwater Solutions. As with a soakaway, an online system handles all stormwater through the storage area before being pumped into the drainage system. Compare and contact a supplier near you. A stormwater attenuation tank is designed to collect and store surface water run-off as a result of a storm event. An attenuation tank is essentially a large container that acts as a buffer to store excess rainwater in the event of a storm and remove the risk of flooding of a residential area. GS-Tanks, Stormwater Attenuation Tank, Attenuation Crates with creep test, compressive test, density test etc. We can also offer an installation service if required. £69. Product Infiltrator® Chamber Systems. It allows rainwater run-off to be temporarily stored and then released gradually. based in Quanzhou, CHINA. New – Semicircular Modular Sedum Trays; How Do Green Roofs Work? What are the benefits of a rooftop garden? How to grow plants on. The tank incorporates a method of releasing stormwater at a flow rate that the storm-water drains can handle without. • Assisting with storm water and flood control. All the crates are doing is creating a large void underground. Our soakaway crates clip together to form a load-bearing underground water storage/attenuation system. Complete crate weighs 11. The system is comprised of base plates, crates and side. 25m3 of water. Rainsmart Ellipse Soakaway Crate. StormCrate55 modular cellular crates are used in storm water retention, attenuation and infiltration applications. This below ground Rain Bloc crate is a simple an effective way to form a Soakaway or attenuation tank. To facilitate this, Geoline Ltd. 2When installing an attenuation tank, several benefits are provided in terms of stormwater management and flood control. This product can bear up to 65 tonnes and is 1m x 0. Cut outs are available for incoming pipework. Stage 3 - Stormwater is held in the tank. competitors. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. Add to basket. It can hold 0. We can provide you with expert advice on the different options available to you, including storm crates and bespoke stormwater attenuation tanks. This below ground Rain Bloc crate is a simple an effective way to form an attenuation tank. Go deeper with Polystorm Deep. 0m and 1. More. The crates are a single piece and. The UK's highest rated online drainage & pipework supplier; Email 01371850120; EmailEcomerchant Aquacrate is designed for the storage (attenuation) of stormwater in both attenuation and infiltration schemes. . Features & Benefits . 285 m3), please also consider the stacking arrangement : No. Rainwater attenuation crates are used for a variety of uses. By sgs. The list below also shows how many crates fit per m 3. storm crates, attenuation tanks, soakaway lagoons etc. The crates have multiple integral shear connectors built into each unit that locate into the crate below. Stormwater Management Ltd was able to find a solution for a domestic, localised flooding issue, which was resolved with minimum costs and disruption to a residents house. uk 3. Ecomerchant Aquacrate is designed for the storage (attenuation) of stormwater in both attenuation and infiltration schemes. Stormwater Attenuation Lagoons. Use the look up table to select the number of crates required using the Nett volume per crate (0. Cut outs are available for incoming pipework. -It has two main functions: “rainwater harvesting” and “rainwater utilization”. Features & Benefits. Stormwater Attenuation Tanks, also known as Modular Plastic Geo Cellular Units (egg. 2m x 0. Comment. 5m x 0. Follow these 6 simple steps to install soakaway crates – both quickly and correctly: Step 1 – Create space. A soakaway crate is designed to send water into the soil, while an attenuation tank stores and redirects it to a watercourse (river, lake or. Stormwater attenuation tanks provide a storage system for rainwater & surface water. Rain Bloc Stormwater Attenuation/Soakaway Crate. Designed to support SuDS management and the sewer infrastructure as part of a designed attenuation system, helping prevent flooding by controlling the flow into the main sewerStormwater management system with various applications, Lorry-bearing 60 tonnes/HS-20, 410 m³ (14. Polystorm and Polystorm Lite are lightweight modular water storage cells with a high void ratio that can be used for either attenuation or infiltration of stormwater in residential, commercial, industrial and retail applications. 00 out of 5. As more and more developments in the UK are built on green fields, it's essential to consider how to deal with the increase in surface water run-off and…Step by Step Attenuation. G 015 001 - RainSmart Stormwater Modules Datasheet NZ. The crates interlock to create a substantial below-ground holding chamber or to facilitate stormwater infiltration into the adjoining earth. ACO stormwater tanks provide an innovative tree pit solution. 27-29 High Street, Drayton, Abingdon, Oxfordshire OX14 4JW, England. To build the attenuation system, the blocks are connected together into a matrix. 5. 0. Stormcell ® is a high-capacity, low-maintenance modular stormwater and surface water storage system that can be customised to suit shallow, deep or irregular sites. the EcoBloc stormwater attenuation crates have a gross volume of 205 litres and are made from 100% recycled plastic. They have an inlet that allows up to 97% of their occupied space to fill with water. 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. 5m below the surface connections of any diameter can be made to the system. Alternatively, fill out our enquiry form:The attenuation tank crates/blocks are placed to the predetermined laying pattern, before holes for inlet, outlet and vent pipes are cut to size. The full Rainbloc attenuation tank kit can be found here. From £269. The rainwater harvesting system is made up of modular rainwater crates, geomembrane, geotextile, silt trap, rainwater first-flush device, and rainwater filters, and water pump, inspection well, pipes, etc. Our easy-to-assemble crate can be installed beneath gardens, pedestrian areas and. SDS GEOlight® is widely recognised as the UK’s market leading water storage and attenuation / infiltration system. 07 (inc. With a compressive strength of 83 tonnes/m2, Polystorm Xtra is designed for various surface water solutions including, surface water rentention, surface water attenuation or surface water infiltration as a soakaway solution, for use in shallow burial depths and heavily trafficked applications such as lorry parks and industrial access roads. They are usually used for larger municipal or commercial applications. The system counts towards 100% of attenuation volumes on-site at the same time as harvesting and re-using rainwater for a range of applications. Aquacrate, made in the UK from recycled polypropylene, is a load-bearing underground water attenuation/soakaway system with. With its dimensions of 1200mm x 600mm x 347mm, it can hold up to 0. £69. Cotterill Civils have years of experience in supplying Land Drainage and Sewer Treatment solutions to clients across the UK. Loading type. The mounting plate inside is included but you will need a bespoke vortex unit - please ring 0121 351 3230 for price on Vortex Flow Control Unit. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. If purchasing in bulk give us a call so we can offer you the best price. Ecomerchant AquaCrate Attenuation & Soak-Away Crate 20 Tonne To 50 Tonnes Loading Capacity. Features & Benefits: Formpave Distribution Tank Single - 354 x 708 x 150mm. Stormwater Attenuation Tank #M2015H. com. We can provide you with expert advice on the different options available to you, including storm crates and bespoke stormwater attenuation tanks. CIRIA RP992 The SuDS Manual Update: Paper RP992/21 Guidance on the Maintenance Plan 4 Inspections should comply with all relevant Health and Safety legislation (Health and Safety at Work Regulations, 1999). ATTENUATION TANK CRATES FOR STORMWATER MANAGEMENT. But, with us you’re guaranteed a tailored service unique to you and your needs. 64′ x 1. Soakaway and Attenuation Crates PSM1A. Easy installation, monitoring, and maintenance. Types of water management solutions. Pipelife Austria's new logistics and warehouse area in Leonding boasts an innovative water management. This rainwater soakaway tank kit comprises the following: Rainbloc crates (1200x600x420mm, 95% void) (select dimensions required) Two part 300g/m² geotextile outerwrap for protection Deareation/ventilation outlet This below ground Rain Bloc crate is a simple an effective way to form an attenuation tank. 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. 4m in size. Stormwater attenuation tanks provide a storage system for rainwater & surface water. Description. Attenuation tanks are created underground using highly porous polymer crates that create a void which are sufficiently structurally stable to support the weight from overlying soils and vehicles above. of Stormwater Attenuation Tank - Attenuation Crates for. 4 crates and would require 750mm of cover for traffic or 500mm for non-traffic use. Above the crates we recommend a 150mm sand/gravel layer and a further 150mm – 350mm of backfill depending upon the application. Used in landscaped areas, or in trafficked areas up to a Gross Vehicle Weight (GVW) of 30 tonnes. For soakaway purposes the crate is wrapped in a geotextile material which is permeable, but protects the system from debris, and allows the water to slowly release back into the ground through infiltration. A hydro brake ensures it is released at a rate that won’t cause flooding or excess strain on the system. Rain Bloc Stormwater Attenuation/Soakaway Crate. For more information on the Polypipe Polystorm-R PSM1A please discuss your project in more detail with JDP Technical Support on 01228 794426 (Mon-Fri 8am to 4pm) or technical@jdpipes. Captured rain water is much healthier for your garden than treated water from the mains. Torwood Glen. Rainwater Retention, Attenuation and. The AquaCrate decreases the inconvenience of flooding during heavy rainfall, with rainwater “cleaned” by the geotextile surround. Our RecoCrate range of soakaway crates are lightweight modular cells with a high void ratiowhich can be used for creating underground water storage systems and attenuation systems for landscaped areas. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. Loading type. Buy premium-quality soakaway crates from Build Plumb Plastics. The Naylor Aquavoid® range of attenuation crates provides an economic and versatile stormwater storage system for general (Traffic) and heavy duty use (Plus). Buried with 0. We understand that the installation of a wastewater system is a big investment. The high void rate (>95%), high compressive strength (to 1000KN/m2) and low resistance to water flow makes SDS GEOlight® an ideal material for cost efficient and maintainable underground water storage during storm conditions. Most people associate the use of modern soakaway crates with infiltration use. 125g/m. 0m3 of storage volume!The JFC OriChamber is a prefabricated unit which comprises a Ø600mm Twinwall Chamber with base, 110mm internal and outlet pipework and a pedestrian duty (bolt down) cover. This helps redirect the water collected to a storm drain or local body of. They are modular, so multiple crates can be used for a soakaway system capable of providing the desired flow rate of water to a body of water or drain. Polystorm Crate. Stormwater attenuation crates offer good flexibility as they can be stacked and most come with a void ratio of at least 90%, which helps to reduce any wastage of underground space. From £269. 1. Stormwater storage crates for attenuation. AquaCell NG is designed primarily for landscaped and light. Doctor Rain is the leading manufacturer for. 5m x 0. The crates are a single piece and can be easily maneuvered, stacked and placed. Explore our wide range of durable and efficient products and make your selection today. : YBS-M1000. Complete crate weighs 11. The system facilitates quick and easy assembly on site where multiple configurations can be formed. Waste and water attenuation. Image of a stormwater attenuation tank from the top. From £269. Located in the village of Torwood on the outskirts of Larbert, Torwood Glen is a high-end. The StormHarvester Active Attenuation System enables water to be held within attenuation tanks. Purpose of this document Features & Benefits: Polypipe PSM1A Polystorm Plastic Soakaway and Attenuation Crate. Storage Volume: 237. Aquavoid Metro enables efficient attenuation of stormwater run off at or near its source in accordance with current best management practice. Flexible design. This stormwater management crate is certified to be able to form part of SuDS drainage systems as well as conforming to standards for adoptability. g. We will look at the engineer’s design and optimise the tank depth to be as economical as possible for the contractor, even where there is a very shallow fall, or perhaps where we need to achieve. 00 7,500 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. Shows. Attenuation Installation Instructions Stormwater Management Ltd, Fleming Rd, Harrowbrook Industrial Estate, LE10 3DU 01455 502 222 [email protected] GEOlight is an ultra lightweight honeycombed modular structure made from recycled PVC. 5 yrs CN Supplier . Specifications of our systems. Alternatively, fill out our enquiry form: Back to blogOur soakaway crates (Aquacrate 400) clip together to form a load-bearing underground water storage/attenuation system. What are soakaway crates/attenuation tanks? Soakaway crates, also known as. 2. Stormwater attenuation lagoons/detention. A soakaway size of 1m3 is sufficient to drain a roof area of approximatley 50m2 under normal ground conditions. These strong, long lasting and eco-friendly crates are ideal for use in residential, commercial, industrial or retail areas including car parks. What Are Stormwater Attenuation Crates? Soakaway Crates to capture water and store it to be stored elsewhere. Reviews. Power supplied by Stormsaver control panel Details Power AC or DC 12V - 24V or 85V - 240VThe system is ideal for shallow attenuation, storage and conveyance of storm water. 4m in size and can hold 0. An attenuation tank can be made up of geo-cellular crates, impermeable geomembrane and protective geotextile, to create a watertight storage tank underground. While conventional SuDS systems, such as tanks, crates, and ponds, have been the go-to. Delivery. top of page. We are professional manufacturer for the geocellular unit modular tank,which also called modular stormwater tank, soakaway crates, stormwater infiltration tank, stormwater attenuation tank, etc. crates, impermeable geomembrane and geotextile to make a stormwater attenuation tank. 285 m3), please also consider the stacking arrangement : No. The void created by the crates can then. Effective stormwater attenuation relies on the ability of a product to trap and store. All of which are supported by our in-house Design. 0121 461 5311. Aquavoid- Metro (400kN/m2) is ideal for general use. Stormwater attenuation tanks provide a storage system for rainwater and surface water. Wavin AquaCell stormwater infiltration and attenuation tanks can be constructed using. Ideal for retention, attenuation or soakaway applications with a suitable geomembrane or geotextile. The ready to install units are preformed to provide an underground stormwater storage facility, for the application of stormwater attenuation or infiltration. Stormwater management is one of the greatest challenges facing site developers and municipal governments. With every development in the UK needing some form of sustainable urban drainage system (SuDS), it’s important to know how an attenuation tank of this type is installed. • ACO StormBrixx soakaway crates: 2. This test will give the area in square metres required, and hence how many soakaway crates. These structures capture rainfall run-off and slowly release it at an allowed rate, to the storm drain system, but unbelievably they sit empty for over 95% of the time waiting for rain. Depends on the size - If this stormwater attenuation tank consists of a handful of SUDS crates, then the only thing you need worry about is the maximum vehicle weight you can drive/park on top. Ireland: +353 (0)14378831. Innovators in water technology. They are designed to be wrapped in a non-woven geotextile membrane to ensure that water is cleaned as it enters the crate. As part of the work, the individual crates were lowered into the excavated area and were. Durable and long-lasting. ATTENUATION TANKS. 00 7,500 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. Excavate the area, making a hole that is the right size for the crates and the top, side and base fillers of gravel and sand. Allied to SDS SYMBiotIC™ smart monitoring and control these devices protect nature-based solutions from the impacts of. If you have already calculated your storage volume, you'll need that figure and the below: An idea of your tank dimensions. Stormwater Retention and INFILTRATION. 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. The crates are designed to be simply and easily stacked together to create a below ground storm water holding tank or to allow the infiltration of storm water into the ground around them. 0138 m3 (void ratio 95. Features & Benefits: Brett Martin Cellular Storm Water Crate 55 Tonne - 1200mm x 600mm x 347mm. Car parks & roads. This product can bear up to 62 tonnes and is 1m x 0. We offer a full range of sizes for storm crate systems and attenuation tanks. September 1, 2022. 28 ft x 3. This below ground Rain Bloc crate is a simple an effective way to form a Soakaway or attenuation tank. 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. The Q-Bic Plus system can be used either as a temporary storage attenuation tank or a soakaway crate, particularly where accessibility into the tank is required. The perforations allow seeping water to ingress the pipe, capillary action then maintains the water within the pipe allowing it to flow to its destination i. The StormHarvester Active Attenuation system works by continually. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. Residential developments. The void created by the crates can then fill up with storm water during heavy rainfall conditions. 00 incl VAT. These systems are required where there is a limitation to the quantity of rainwater which can be discharged. What is a stormwater attenuation tank? Attenuation tanks are often confused with soakaway crates, and while there are some similarities between them, the way they operate is largely very different. The stormwater is then released from the storage tank at a controlled rate, usually by a flow control, which means that the surface water run-off will be slowly released into a local water course like a river or reservoir, therefore minimising. Comprising of. However, if you are using them for infiltration, the water will slowly soak away into the groundwater table. The system is comprised of base plates, crates and side. 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 storage (attenuation) applications for surface and storm water management. Stormwater Management Brett Martin’s StormCrate55 modular cellular crates are used in storm water retention, attenuation and infiltration applications. 1. Quick. Read more about this here. 3 Crates per m3, 60 Tonne Rated. Leiyuan - Model M2015S - Infiltration Tank - Geocellular, for Underground Stormwater. Maximum installation depth of 5m. Brett Martins stormcrates are modular geocelluar units which are used for storm water attenuation surface water filtration and soakaways . Tanks Direct offer a range of Klargester GRP attenuation tanks, providing a suitable alternative to traditional large pipes and attenuation crates solutions. The crate structure is surrounded with a permeable non-woven geotextile to prevent any ingress of silt to the crate structure. 0 kg Nominal crate size Nominal base size Coverage Rate Volume of crates Capacity of crates Volume of bases Capacity of bases Weights Our Pipelife Stormbox is the heart of our stormwater management system. 00 7,500 litre SuDS Rainwater Attenuation Tank with. Incredibly strong and durable modular polypropylene construction. StormBrixx attenuation and soakaway crates offer countless configurations, for flexibility in design and construction to fit any site. Stormwater management system with various applications: Rainwater infiltration, Stormwater attenuation, Rainwater harvesting, 60 tonnes/HS-20, 410 m³ (14. Buy premium-quality soakaway crates from Build Plumb Plastics. Making use of Invisible Structure’s trademark ring-on-grid design, Rainstore3 exceeds H-20. Most systems comprise some sort of holding area, often an underground tank, that fills up during a storm. All penetrations are sealed to ensure one-hundred-percent waterproofing integrity, using stainless-steel bands or special components provided by the crate/block Manufacturer. 54 Excl. Detention BasinRain Bloc Stormwater Attenuation/Soakaway Crate. The crates hold water when there is a sudden large flow in a storm to alleviate the. The StormCrates are designed to be stacked together to create a huge. An offline system is connected to the inlet. Infiltration and attenuation Modular Units supplied by Plastech (Southern) Ltd in Hampshire. Each crate is 0. VAT)Results for stormwater attenuation equipment from JFC, Leiyuan, 2H GEOdek and other leading brands. 3m and sits on a purpose designed base plate so open crates can then be stacked on top to. We supply a range of stormwater attenuation solutions, including stormwater crates and soakaway crates. 1000 x 1000 x 400mm (0. 3 crates per m3 gross volume). Stormwater Attenuation Case studies. Crate size 1200mm (L) x 600mm (W) x 420mm (D) (3.