attenuation crate. Attenuation Crates Drainage anti-flooding blocks with 300-litre capacity for rapid drainage of land. attenuation crate

 
Attenuation Crates Drainage anti-flooding blocks with 300-litre capacity for rapid drainage of landattenuation crate  Flexible design

It can also be a useful way of harvesting water for other uses such as gardening, car washing and toilet flushing. 6. Rain Bloc Stormwater Attenuation/Soakaway Crate. of. The full Rainbloc attenuation tank kit can be found here. Soakaways are generally designed for small usage, like isolated residential properties and permeable ground conditions, like sand or gravel. 0m x 0. 00 incl VAT. VAT. Code STM02D;Polystorm. Our soakaway crates (Aquacrate 400) clip together to form a load-bearing underground water storage/attenuation system. Attenuation is the term used to describe the reduction of a force, effect or value. 88 £ 545 . If you live close. Features & Benefits. All penetrations are sealed to ensure one-hundred-percent waterproofing integrity, using stainless-steel bands or special components provided by the crate/block Manufacturer. Please visit our Geotextile page to find out more. Therefore maximising an area for both land use and stormwater management is crucial in a developed city. My basket. Contact. Come on site with us as we film a large attenuation tank installation for a new housing development - Lakeview Quarry in Somerset. 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. 19m3 per crate. 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. Attenuation Rainwater, which has been collected from impermeable surfaces, is directed to the crate structure Rainsmart Ellipse Soakaway Crate. Dimensions: 1200mm (L) x 600mm (W) x 347mm (H) Crates Per m3: 4. In areas where water storage is not a consideration. In 1996 SDS GEOlight® helped create the foundations on which our company was built, when we completed. Install through the membrane liners, using 50mm double-sided butyl tape between the top hat and membrane and 75mm PVC tape around the perimeter of the top hat. Quantity. The crates interlock to create a substantial below-ground holding chamber or to facilitate stormwater infiltration into the adjoining earth. 5% void ratio). Ecomerchant Aquacrate is a geocellular high-quality synthetic rectangular box. Large attenuation tanks are formed from modular soakaway crates as per the example in the image below. 25 Make pipe connections as necessary, including the air vent. Attenuation Tanks. As a simple concept, it works like this. We also offer Polystorm Access and Polystorm Inspect, which allow for. Ecomerchant Aquacrate is designed for the storage (attenuation) of stormwater in both attenuation and infiltration schemes. The above observations suggest a method to measure attenuation for the ground coupled GPR with respect to a single radar waveform. Let P1 P 1 be the power at z = l z = l. We understand that the installation of a wastewater system is a big investment. Attenuation crates, also known as soakaway crates, are used to control the level of surface water and reduce the risk of flooding. Can be used as part of an intelligently engineered hybrid system with Polystorm Xtra and Polystorm Lite. Wavin AquaCell units are a tried and tested modular technique for managing excessive rainfall and can be assembled to create an underground structure as either a temporary attenuation tank or infiltration soakaway. Locate and compare Industrial Crating & Crates in Coquitlam BC, Yellow Pages Local Listings. VATFrom £ 0. In conclusion, the art of gravel application is a fusion of time-honoured techniques and modern innovations. Soakaway Depth. The collected water is then dispersed in one of two ways, depending on whether the crates are installed in an attenuation system or a soakaway system. 60 £54. 84m 3. In areas where water storage is not a consideration. Search. A robust yet lightweight soak-away solution that gives the product a long life as well as making yours easier when it comes to installation. Order Helpline 01752 692 221. While digging the hole, look out for changes in soil characteristics at different. A stormwater attenuation tank is designed to collect and store excess surface water run-off from a large storm event. g. We supply 20 tonne crates for pedestrian traffic and all the way up to 100 tonne crates for HGVs and heavy plant traffic. . Stackable stormwater attenuation crates offer a modular design that give you more flexibility over how the system is installed and set-up in the ground. While talking about the attenuation, this however manages the flow of water course or suitably drainage method, this all the way significant while tackling the flooded downstream infrastructure. Hydrocell Soakaway Crate 62 Ton ( 1 000mm x 500mm x 400mm per crate) . 5 Per m3. The crates are a single piece and can be easily maneuvered, stacked and placed. 4m in size. Did you love our StormGuard attenuation crate? If so, there is no doubt you will love the HexiCell… The HexiCell is an innovative attenuation system, designed to manage storm water and. Price is per crateStormwater Attenuation & Infiltration Crates • Cellular stormwater attenuation crates • Ideal for domestic soakaways • 3. This helps stops soil from entering and clogging up the system. The leading manufacturer for plastic underground modular rainwater crates (soakway crates,attenuation crate, infiltration crates) in China, established in 2013. Stormbloc ® Extra. Reviews. It is not suitable for locations subject to high water tables. A flow equalizer is required when the velocity profile is not uniform. Stacked on pallets to save space during transport reducing costs and CO 2 emissions. Sort By. Attenuation crates need to be designed to minimize. £6. Permavoid 85 and 150 - Product Codes: PVPP85 and PVPP150 Permavoid units are available in two depths, 85mm and 150mm. Sustainably Made. Gordon Kinchett, Ordered terram t1000. Included with each StormCrate are 2 shear pin connectors (bullets) and 4 connector clips in an orange colour. uk , buy now from Attenuation Tank Crates or call the sales office on 01255 258525. 8. Explore our versatile collection of plastic grids, including ground reinforcement grids & eco-friendly options. £69. A stormwater attenuation system provides a cost-effective solution but not all companies have the. Contact. APPLICATIONS • Landscaped areasAttenuation Tanks. Cellular rainwater attenuation module; Swift installation in up to 10 layers; Perfect for residential. So no, they serve different purposes. The void in the crate holds the stormwater during heavy ra. A geotextile removes debris from stormwater while the addition of a geomembrane enables water storage when required. 4. Code G4110SC; From 3 reviews £45. Dimensions: 1200mm x 600mm x 347mm. The water stored in the attenuation tank is wrapped in membrane to stop soil particles from entering. The ACO RoofBloxx Shallow Attenuation Tank stacks to create 85mm / 125mm / 165mm depths. Fig. Sold Complete With Clips and shear connectors. AquaCell Core-R can also be used in both landscaped and deep. Large net storage volume of 287 litres per crate (302. Attenuation Tanks. Each soakaway crate is a different size, therefore the brand you choose can determine the number of crates required for your attenuation system. Skip to main content. What are the typical problems with a soakaway tank? Want to know more? Download our free information pack to discover: GRAF Stormwater Management Systems. We recommend that your groundwork contractor undertakes a percolation test on your soil to calculate the correct number of. This will give the crates a solid base to sit on. Our range of Soakaway Crates include the Polypipe Polystorm, Polypipe Polystorm Lite, Aqua Storm and the Brett Martin StormCrate. The full Rainbloc attenuation tank kit can be found here. 00. Each crate has cut-away templates to suit all standard size pipes. From £269. 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. Carlow Concrete are one of the leading specialists in Stormwater Attenuation in both the UK and Ireland. DOMESTIC SEWAGE TREATMENT PLANTS. FREE Delivery. The outer surfaces of the crates should be wrapped in a geotextile membrane. Soakaway are designed and constructed in a very similar way to attenuation tanks and use the same polymer crate system to create the void. Polypipe is able to offer multiple systems that may be used to provide attenuation storage within a development. An attenuation system is the best option where local conditions don’t allow for a soakaway. 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. Attenuation cells, (also known as Storm Cells, Soakaway Modules, and Storm Crates) are the modern equivalent of a soakaway. Stackable crates. This is provided free of charge from JDP Technical Support. ground and the surface area of the crate structure sides and base). Catchpits are essential in preventing pipe blockages, which would result in the backing up of water in the drainage system – therefore leading to flooding. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. 54 Excl. VAT. £22. 40. Brett Martin Storm Crate 55 Tonne 1200mm x 600mm x 347mm (0. Stormwater management system with various applications: Rainwater infiltration, Stormwater attenuation, Rainwater harvesting, 60 tonnes/HS-20, 410 m³ (14. With a design that ensures that solids are. Stormwater attenuation tanks provide a storage system for rainwater and surface water. Efficient pallet stacking provides quick construction and installation. An alternator running at 256RPM will produce about 22 FE/t, whereas a motor running at 256RPM will consume about 30 FE/t. 4 Crates per 1m Cubed. delivery: 2 working days. These modular water storage cells have a high void ratio and are used for either attenuation or infiltration of stormwater in residential, commercial, industrial and agricultural applications. application of stormwater attenuation or infiltration. VAT. LLDPE High Strength Impermeable Tank Liner Membrane. 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 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. BBA approved. Then the power at z = 0 z = 0 relative to the. 4m in size. 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. Consider a transmission line carrying a wave in the +z + z direction. 88Stockists. Attenuation crates, also known as soakaway crates, are used to control the level of surface water and reduce the risk of flooding. Polystorm Cell Modular Soakaway and Attenuation Crates PSM1A, designed to hold water during a storm to alleviate flooding. Storage Volume: 190L per crate. This makes it robust yet lightweight soakaway solution, giving the product a long life and making yours easier when it comes to installation. STRONG Weighing just 16kg per crate, they can be moved and installed by hand removing the need for machinery LIGHTWEIGHTThe CORE Water Crate is the perfect product for creating soakaways in residential and commercial projects. 25 metres. Code G4110SC; From 3 reviews £45. KLARGESTER AQUAHOLD SM05 - 5,000 litres. Amazon. It can hold 0. In this guide, we will be going step by step through the process of Installing an Attenuation Tank. The Rain Bloc compact 300 soakaway crate can be used in both infiltration and attenuation systems. £27. Designed for heavy trafficked conditions which require shallow excavations and burial depths. 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. StormCrate55 modular cellular crates are used in storm water retention, attenuation and infiltration applications. It's. This capacity can meet the demands of most large projects for stormwater attenuation projects. 855 Litres. See the illustration. 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. VAT. Attenuation tanks Green roofs (*) SuDS Manual Page References will be included once the SuDS Manual update has been completed. 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. Rainsmart's Terravault is a modular cellular confinement crate system that protects tree roots from both vehicular and foot traffic. 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 Polystorm geocelluar system can also be integrated with Permavoid systems. 49 ex VAT) AquaCrate Stormwater Soakaway and Attenuation Crate 20 Tonne - 2. 00. Answered 6th Aug 2023 Liked 6. 84 ex VAT £2. The void created by the crates can then fill up with storm water during heavy rainfall conditions. 5m x 0. Suited to trafficked areas. Reviews. In this video we take yo. Features & Benefits: Brett Martin Cellular Storm Water Crate 55 Tonne - 1200mm x 600mm x 347mm. Rain Bloc 60 Tonne Soakaway and Attenuation Set with Silt Trap & Lid - 0. Osma Black Aquacell Eco 1000mm x 500mm x 400mm Unit Non-Trafficked. The most common approach to creating an underground storage tank is to use; stormwater attenuation crates, impermeable geomembrane and geotextile to make a stormwater attenuation tank. Access for inspection and maintenance is via Stormbloc ® Inspect. Hydrocell Soakaway Crate 62 Ton. Attenuation & Soakaway Crates. Recyclable. Buy Polypipe Polystorm R (PSM1A) Soakaway Crate / Attenuation Cell Online at an Amazing Low Price From Easymerchant. Our industry leading products can be deployed in Infiltration / Soak-away, Permeable and Impermeable Attenuation systems, which makes their range of applications incredibly. Select a suitable Naylor liner: If a permeable infiltration system is required choose a single layer of Naylor GT As the crate structure fills, water begins to exfiltrate from the tank into the surrounding ground. CIRIA RP992 The SuDS Manual Update: Paper RP992/21 Guidance on the Maintenance Plan 3 Maintenance Inspection Checklists 3. 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. Vortex and nonsymmetric velocity profile caused by piping arrangement. where the chances of infiltration is smoother. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. We can also offer an installation service if required. 21 inc VAT Was: £0. 5. Latest news & updates for RainBloc Crate for Attenuation and Infiltration tanks. 00. It can hold 0. This removes the. 00 £68. Our crates are a step forward in drainage technology; advancing from the old-fashioned, ine˛cient soakways ˚lledA flow straightener can be a tube bundle or an “egg crate,” as shown in Fig. Buried 0. Find high-quality products at unbeatable prices. Soakaway crates can be used for rainwater attenuation or soakaway purposes in commercial and domestic projects. Attenuation Crates 20T to 75T Load Rating. This soakaway crate has been designed for use in deep applications, subject to regular and heavy traffic loadings, e. Rated 5. AquaCrates are manufactured in the UK to ISO 9001 Quality Standards, from recycled strong copolymer polypropylene. Sadly, there is little we can do to help maintain these installations. This is where our soakaway crates come in. 200 to 299. 00 incl VAT. COMMERCIAL SEWAGE TREATMENT PLANTS. Minimises risk of flooding and stores water (water to SUDS requirements) 400-litre capacity (2. . £69. All the components are contained in a single crate, without any separate chambers. This is obviously wrong, because if you move a candle away from a surface in real life, then the surface gets darker. ALL. the. 3 crates per m3 gross volume). 3 Cubic Metre . Features & Benefits: ACO RoofBloxx Water Attenuation Crate. The EcoBloc Flex crates are designed to be stacked together to create a holding tank or to allow the infiltration of storm water into the ground. Ideal for retention, attenuation or soakaway applications/schemes with a suitable geomembrane or geotextile. The plastic driveway grid, with its stability and adaptability, revolutionises the way we approach these projects. ) and attenuation crates that allow modular construction make it easier for the systems to adapt and work vertically or. To fix this, we will implement attenuation. Storage Volume: 237. These soakaway crates (Polystorm) clip together to form a load-bearing underground water storage/attenuation system. 00 £68. 72 £57. Torwood Glen. Cut outs are available for incoming pipework. The drug plays a role in the attenuation of inflammation. A soakaway crate absorbs water and distributes it steadily back into the ground and soil. If you are looking to source crates for a geocellular attenuation tank then we offer a number of impermeable membranes that can help including a shoebox design which is used to wrap around geocellular attenuation units and is usually supplied in two fabricated pieces. Features & Benefits: Draintex Drainage Geotextile Fabric - 1000mm x 10m. Objectives This checklist is a generic list that can be added to, or have items removed from, to suit a particular site. A) CRATE SYSTEM. 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. Inc. 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. Rated 5. DESIGN. £103. 00 out of 5 based on 1 customer rating. This below ground Rain Bloc crate is a simple an effective way to form a Soakaway or attenuation tank. 60 £54. Soakaway are designed and constructed in a very similar way to attenuation tanks and use the same polymer crate system to create the void. What is the difference between a soakaway and an attenuation tank? A soakaway, as the name. 01. 3 Cubic Metre . Code G4110M3K; Brand Graf; £415. 00 7,500 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. Due to increased activity in the building sector over the last decade or so, Local Authorities have laid down strict guidelines for developers, who wish to construct new projects on existing non-developed land. GEOlight® provides green residential amenities with additional run-off capacity – The Quarry, Erith. Impermeable and Geotextile membranes. SDS GEOlight® has been constructed entirely from post-consumer recycled PVC waste, which is normally destined for landfill. What sets this Polystorm Crate apart is its efficient interlocking mechanism. Soakaway crates can be used for rainwater attenuation or soakaway purposes in commercial and domestic projects. Grass parking grids which quickly connect together for churn-free grass driveways and parking spaces. Surface water is diverted or soaks down into weight resistant crates and from there dissipate into the lower ground clearing. Attenuation & Soakaway Crates. 00 7,500 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. Maximum installation depth of 4m. Features & Benefits: Formpave Distribution Tank Single - 354 x 708 x 150mm. 1000mm x 1000mm x 400mm each crate holds 0. Dimensions: W: 715mm x D: 400mm x H: 440mm. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. Flexible shape, perfect for use in restricted areas, narrow strips or shallow excavation systems. Delivery. 3 Cubic Metre . Flexible design. 00 £68. View details. VAT. Soakaway crates can be used for rainwater attenuation or soakaway purposes in commercial and domestic projects. Millions of homes in the UK face the threat of flooding every year, with much depending on seasonal weather conditions and water levels during that period. Introducing IBRABASE, our eco-friendly shed base grid system, made entirely from recycled plastic. An attenuation crate stores the water and redirects it to somewhere else. ACO RoofBloxx is a complete roof attenuation system for blue, green and blue/green roofs. It simply means collecting the surface in a storage tank or crate or pipe and releasing it slowly at controlled rates. 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. As a key part of our overall SuDS offering, our Klargester AquaHold attenuation range offers many benefits over traditional crate systems. (€2,354. Find a Crate and Barrel Store Location Near You. Checkout. 17. Tanks utilize 1m x1m x 0. FREE delivery 8 - 9 Nov. Loading type. They can be used in trafficked and non-trafficked areas. 28 inc VAT Was: £0. The Rainbox 3S boxes arrive flat-packed for more efficient shipping and less CO2 emissions. CORE TRADE. They can be used in non-trafficked and trafficked areas, ideal for housing, car parks, driveways, commercial and. The Polystorm geocellular range is designed to provide retention, attenuation and infiltration at a variety of depths. From £269. £69. 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 green spaces at roof or podium level. Both are used to create a geocellular interlocking system designed for shallow groundwater storage or infiltration, replacing the traditional aggregate sub-base. Follow these 6 simple steps to install soakaway crates – both quickly and correctly: Step 1 – Create space. There are 5 main variations to choose from, each one offering different features benefits depending on your drainage need and installation environment. 9kg. 300 to +. Crates come in different strengths. Ideal for retention, attenuation or soakaway applications with a suitable geomembrane or geotextile. The AquaCrate decreases the inconvenience of flooding during heavy rainfall, with rainwater “cleaned” by the geotextile surround. 03. 3 Cubic Metre . 8')Even under very heavy loads, GRAF EcoBloc Inspect flex modules can be installed at a depth of. Domestic Soakaways are typically 1-3 m3 so please select the number required. The standard loading capacity of 400 kN/m2 is sufficient. Product Description. 4m in size. Get in touch 01753 652 555. Liked by the question poster. With a reservoir volume in excess up to 97 %, it is a market-leading product. 4. 4 cubic meters 20 Ton Soak Away Crate Attenuation Cells From Storm Master ( 5 x crates = 2 cubic meters ) (380 Litres Capacity) 95. Four StormCrates per 1m³; 95% void ratioATTENUATION CRATES. This document describes the products from Polypipe Water Management Solutions for. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. 5 out of five star rating on Trustpilot. The concept of trees being used in a street or carpark setting. Rainwater harvesting system is seen to be comprised of number of stages which usually includes the drains, filtration, storage also reusing the same. StormCrate55 modular cellular crates are used in storm water retention, attenuation and infiltration applications. These two options work in tandem to create a reduced likelihood of flooding due to storms. Inspectable and jettable with a configuration of RAINBOX® Cube within the system. Geocellular crate for soakaway (infiltration) or storage (attenuation) applications for surface and storm water. Located in the village of Torwood on the outskirts of Larbert, Torwood Glen is a high-end. Stackable stormwater attenuation crates offer a modular design that give you more flexibility over how the system is installed and set-up in the ground. 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. Attenuation Crates Drainage anti-flooding blocks with 300-litre capacity for rapid drainage of land. Durable and long-lasting. There’s lots to consider when sizing a tank so we’ve put together this guide to help you choose one that suits your requirements. Civils & Drainage. Car parks & roads. 480 ft³)/Truck The GRAF EcoBloc Maxx is the ultimate stormwater management solution designed for versatile applications including soakaway, stormwater attenuation, and rainwater. £36. Help & Advice. A high-strength option ideal for installation beneath heavily loaded areas such as roads, car parks and warehouse yards. 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. Add to Compare. This below ground Rain Bloc crate is a simple an effective way to form an attenuation tank. A Core Water Soakaway Crate with membrane measuring 800mm x 500mm x 540mm. Delivery. Lightweight recycled polypropylene structure. . SEPTIC TANKS. 1000 x 1000 x 400mm (50 Tonne) Flood Crate Product Code: FC-50 £ 75. Register | Login. proslab. 15), pull the geomembrane up the sides of the tank, create ‘bedsheet folds’ to the corners and tape into position. Rainwater Soakaway Attenuation Crate Package - EcoBloc Maxx is one excellent option using which you can stock water either for own use or release the same later based on your choice and requirement. 200 to 299. Attenuation Tanks are preferred over alternative methods such as soakaway crates. An attenuation tank is an important flood prevention system that is used to store excess rainfall before slowly releasing the water back into the watercourse (such as a river or reservoir) when it is safe to do so. 3. 50 each. It can hold 0. Made of 100% recycled plastic, modular construction and good resistance to traffic. Stormwater storage crates for filtration Polystorm-R. 2018 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:-Permavoid. Stop water pooling in one easy step. Approvals: BBA. FREE shipping and FAST delivery. This one will surely meet your need thus relieving you from water logging issues. Search. The Rain Bloc compact 300 soakaway 0. Documentation. Surface water attenuation is one of the key actions to move in this direction. It can also be a useful way of harvesting water for other uses such as gardening, car washing and toilet flushing. This reduces the cost of a metered water supply and creates a more sustainable water management system. 00 each. Rain Bloc Stormwater Attenuation/Soakaway Crate. SDS identifies and delivers engineering solutions that enable global water infrastructure to operate sustainably and to its maximum efficiency potential. 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). Soakaway crates, also known as infiltration crates, are a type of stormwater management system that allow water to naturally soak into the ground, reducing the load on drainage systems. Installation depth of up to 5 metres (16' 4. 3 crates per m3 gross volume). Sub-total £0. £11. Soakaway and Attenuation Crates PSM1A. Rain Bloc 60 Tonne Soakaway and Attenuation Crate - 0.