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The key element is a flow control chamber to regulate the amount of water. the property of something that has been weakened or reduced in. It offers usage in both landscaping and civil engineering applications. . VAT. 10. From £269. Rain Bloc 60 Tonne Soakaway and Attenuation Set with Silt Trap & Lid - 0. In this guide, we will be going step by step through the process of Installing an Attenuation Tank. All penetrations are sealed to ensure one-hundred-percent waterproofing integrity, using stainless-steel bands or special components provided by the crate/block Manufacturer. At least 2. It allows rainwater run-off to be temporarily stored and then released gradually. Fig. Our soakaway crates clip together to form a load-bearing underground water storage/attenuation system. Excellent filtration and drainage properties for trench lining. Latest Case Study: Severn Trent Water Following an evaluation from the New Products CoP Group Waste team of Severn Trent the stormwater management system by Triton Stormwater Solutions has been approved for use within Severn Trent on both AMP 6 Capital Projects and Developer Sites. A catchpit is an empty chamber that is installed into a drainage system to prevent silt and debris from building up and causing blockages. 07 ex VAT £7. The attenuation coefficient, backscatter term, and the image intensity are further analyzed in regions of interest, which have been delineated referring to their pathology counterparts. 5. Rain Bloc Stormwater Attenuation/Soakaway Crate. Items added to your basket will appear here. The Brett Martin Stormcrate 55T Soakaway Crate is the perfect solution for managing stormwater runoff. As the crate structure fills, water begins to exfiltrate from the tank into the surrounding ground. 28 inc VAT Was: £0. 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. We also offer Polystorm Access and Polystorm Inspect, which allow for. 5m below the surface connections of any diameter can be made to the system. Soakaway crates can be used for rainwater attenuation or soakaway purposes in commercial and domestic projects. 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. Pluvial Cube and Polystorm Attenuation Crate Systems to install underground stormwater storage tanks. 25m2) Full specification at the bottom of this page. Features & Benefits. Let P1 P 1 be the power at z = l z = l. If you are new to stormwater attenuation crates and are not familiar with the different types of systems that are available, it may be difficult to know where to start. This crate has a compressive strengh of 61 tonnes/ m2. VAT. 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. Sadly, there is little we can do to help maintain these installations. A high-strength option ideal for installation beneath heavily loaded areas such as roads, car parks and warehouse yards. Toggle. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. Each crate has cut-away templates to suit all standard size pipes. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8. CIRIA RP992 The SuDS Manual Update: Paper RP992/21 Guidance on the Maintenance Plan 3 Maintenance Inspection Checklists 3. Rainwater Diffuser: The rainwater diffuser collects surface water into the voided subsoil aggregate in a permeable or impermeable infiltration system. £60. They are one wonderful solution for drainage and places where infiltration is possible for the existence of silt, sand and gravel you can. Inc. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. g. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. #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. 50 each. Osma Rainchannel Drainage Channel With Polypropylene Self. Rated 5. We offer a full design service, please contact us at sales@plasticdrianage. They can be used in soft landscaped or trafficked applications up to a gross vehicle weight (GVW) of 12 tonnes. The full Rainbloc attenuation tank kit can be found here. After installing soakaway crates, they can be combined with waterproof pipework and geotextile to develop an attenuation system. The issue of water attenuation is an increasingly hot topic, with more occurrences of extreme weather patterns being experienced across the UK. The store will not work correctly in the case when cookies are disabled. and there's plenty more on the way! 💧 Whether your soakaway or attenuation crate. 2m3 per crate) £36. It has a 61 tonnes/m² compressive strength and is manufactured from over 90% recycled material content. 5 out of five star rating on Trustpilot. 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. So, what are the differences between stormwater storage crates for filtration and attenuation? Let’s find out. This protection fleece non-woven geotextile is white in colour, 2 metres wide and available in a standard roll length of 50 metres. 00 each. Attenuation Tanks. 00 ex VAT. SDS identifies and delivers engineering solutions that enable global water infrastructure to operate sustainably and to its maximum efficiency potential. Flooding can cause significant financial losses and damage. If purchasing in bulk give us a call so we can offer you the best price. The study of attenuation is important to ensure minimal signal loss in transmission. Each crate is 0. £24. 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. The modular cells combine to provide water storage structures to help with localised flood. Buy your crates. Contact Us today 01616671241. 300 to +. Stormbloc ® Extra. Attenuation Tanks. 2m3 per crate. Plastic & Clay Drainage. Save up to 80% of freight costs with EcoBloc light. 5m x 0. Features & Benefits: Storage capacity of 290 litres. 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. . Polypipe is able to offer multiple systems that may be used to provide attenuation storage within a development. REED BEDS. FREE Delivery. The surface water run-off is slowed down before it is discharged. 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. For attenuation systems: Position the inflow and outflow connections level with the base of the Aquavoid-Metro structure. Rainsmart Soakaway Set Assembled - Heavy 1 Cubic Metre . Inc. Install IBRAN Gravel Grids for assured quality, consistency and confidence. Features & Benefits: Graf Rain Bloc Stormwater Attenuation Crate - 3. 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. Sub-total £0. The Polystorm geocellular range is ideally suited to deeper applications and can accommodate a wide range of traffic loadings, from pedestrianised areas to large HGV parks. 4 cubic meters 20 Ton Soak Away Crate Attenuation Cells From Storm Master ( 5 x crates = 2 cubic meters ) (380 Litres Capacity) 95. 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. It has a 61 tonnes/m² compressive strength and is manufactured from over 90% recycled material content. Large attenuation tanks are formed from modular soakaway crates as per the example in the image below. 21 inc VAT Was: £0. Fig. Attenuation rate is a convenient way to quantify loss in general media, including transmission lines, using the decibel scale. This Brett Martin StormCrate55 is a modular cellar crate system designed to be used as attenuation cells or for soakaway applications. STORMWATER. 50m 2 x (50/3000) = 0. Quantity: 25 Year Guarantee. 54 Excl. AquaCell Core-R has been designed for use in deep applications, subject to regular and heavy traffic loadings, e. 285 m3), please also consider the stacking arrangement : No. Attenuation Tanks. 00 - $70. Find high-quality products at unbeatable prices. 99 (£37. Amazon. 1000mm x 1000mm x 400mm dimensions. Grass parking grids which quickly connect together for churn-free grass driveways and parking spaces. Ideal for blue and green roofs. Dimensions: W: 715mm x D: 400mm x H: 440mm. 1000 x 1000 x 400mm (50 Tonne) Flood Crate Product Code: FC-50 £ 75. This below ground Rain Bloc crate is a simple an effective way to form a Soakaway or attenuation tank. The Rain Bloc compact 300 soakaway 0. Polypipe is able to offer multiple systems that may be used to provide attenuation storage within a development. • 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. Stormwater Attenuation & Soakaway Crates Construction projects, particularly involving stormwater management, are often impacted by concerns for the environment and new legislation. Maximum installation depth of 4m. . 40 Save 20% . £69. Attenuation storage volume 4 Figure 22 41 Required attenuation storage 4 11 42 Hydrological rainfall zones for the UK 4 Figure 23 42 Long term storage volumes 4 12 43 Typical silt trap 4 Figure 24 43 Percolation test for designing a soakaway system 4 Figure 25 44 Percolation test for designing a soakaway system - worked example 4 Figure 26 45 StormCrate is a cellular stormwater attenuation crate. ACO RainDrain Channel and Galvanised Grating A 15 - 118mm x 97mm x 1000mm. 9: Attenuation Rate. 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. Attenuation. CORE Drive stabilises gravel for many applications: paths, driveways, car parks & more. £482. 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). What are the different types of attenuation crates? There are several types of attenuation crates that can be used for different applications: Single piece crates. Contact. Product Infiltrator® Chamber Systems. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. Our stormwater attenuation and soakaway crates are built to last due to the quality material we use and come with a 50-year design life. Attenuation Crates. In addition, in this study, a more recent method of measuring the attenuation coefficient, known as the depth-resolved approach [42,43, 46], was used, while in other studies on the evaluation of. 02. What are the typical problems with a stormwater attenuation tank? What are the different types of attenuation crates and the benefits of each. Managing stormwater is becoming more and more of a challenge for builders and developers who need to meet the increasing regulation to control its flow. DOMESTIC SEWAGE TREATMENT PLANTS. (1) From £ 0. Stormwater Attenuation Tanks. CORE TRADE. 855 Litres. Select a suitable Naylor liner: If a permeable infiltration system is required choose a single layer of Naylor GTSoakaway/Attenuation Crates. We supply 20 tonne crates for pedestrian traffic and all the way up to 100 tonne crates for HGVs and heavy plant traffic. 5 Per m3. Buy it now. This makes it robust yet lightweight soakaway solution, giving the product a long life and making yours easier when it comes to installation. Waste. Ideal for retention, attenuation or soakaway applications with a suitable geomembrane or geotextile. They are also three times faster to. Documentation. The crates have multiple integral shear connectors built into each unit that locate into the crate below. Number of Rainsmart Ellipse Double Crates Required:. Attenuation crates, also known as soakaway crates, are used to control the level of surface water and reduce the risk of flooding. Compressive Strength: Maximum 55 Tonne. 6mm geomembrane (light duty/ clean water) juta gph 1mm geomembrane (heavy duty/ hydrocarbon sites) nb - attenuation tank design including depth, size & volume, inlet/ outlet. excl VAT (Each. A stormwater attenuation tank is designed to collect and store excess surface water run-off from a large storm event. ACO RoofBloxx Reservoir Tray Wall Extender - 60mm. Attenuation crates also known as soakaway crates are used to control the level of surface water in areas that experience heavy rains or floods. 17. C. Attenuation Tanks are preferred over alternative methods such as soakaway crates. It simply means collecting the surface in a storage tank or crate or pipe and releasing it slowly at controlled rates. If you live close. Latest news & updates for EcoBloc Maxx Crate for Attenuation and Infiltration tanks. This below ground Rain Bloc crate is a simple an effective way to form a Soakaway or attenuation tank. This can be as simple as a buried layer of gravel or by using a stormwater crate. Rain Bloc Stormwater Attenuation/Soakaway Crate. 2 reviews. Minimises risk of flooding and stores water (water to SUDS requirements) 400-litre capacity (2. Our soakaway crates (Aquacrate 400) clip together to form a load-bearing underground water storage/attenuation system. Inspectable and jettable with a configuration of RAINBOX® Cube within the system. 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. Delivery. 72 £57. Graf Rain Bloc Stormwater Attenuation Crate - 3. This non-woven protection fleece. Reviews. Let us introduce you to this cutting-edge. 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. 42m3 StormBrixx crates (in four pieces) 8 x side panels for lateral support. Can be used as part of an intelligently engineered hybrid system in. Step by Step Attenuation. Buried underground, they provide an effective infiltration system through their sturdy geocellular structure which allows rainwater to drain into. Reviews. AquaCell Eco. StormCrate55 modular cellular crates are used in storm water retention, attenuation and infiltration applications. KLARGESTER AQUAHOLD SM05 - 5,000 litres. excl VAT (Each) Buy Now. Rainsmart Ellipse Soakaway Crate. 99 GBP. Specialists in stormwater management and rainwater harvesting systems, SCP Water Management Ltd. However, if you are using them for infiltration, the water will slowly soak away into the groundwater table. 00 £68. The crate structure is surrounded with a permeable non-woven geotextile to prevent any ingress of silt to the crate structure. 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. The use of a geocellular system offers a modern and efficient way of creating storm water storage/soakaways compared to traditional methods. 00 £68. Easy to assemble and install. Stormwater storage crates are perfect for filtration or attenuation. 82’ (800 x 490 x 250mm) Material: 100% Recycled PP, or Virgin Materials Load Capacity: 40T/m2 Tanks: 10 tanks/cbm Void ratio: 94% Water Storage:. Attenuation crates are interlocked crates to store water and release slowly to the ground through infiltration or discharge it to the downstream network and finally to the outfall points. Buy premium-quality soakaway crates from Build Plumb Plastics. 9. £27. Delivery. CF Civils & Groundworks Ltd have become specialists in crate system design, supply and installation as well as the integration of geo membranes for. The modern option is to use dedicated plastic boxes, known as soakaway or attenuation crates. Geocellular attenuation or soakaway crates are also extremely versatile, which means they can be configured around site constraints. Locate and compare Industrial Crating & Crates in Coquitlam BC, Yellow Pages Local Listings. It is made from 100% recycled plastic. VAT toggle. green amenity areas). Code G4110M3K; Brand Graf; £415. This reduces the cost of a metered water supply and creates a more sustainable water management system. noun. Ideal for retention, attenuation or soakaway applications with a suitable geomembrane or geotextile. The outer surfaces of the crates should be wrapped in a geotextile membrane. 40. If the CTAC could be used for calcium scoring, the acquisition of CSCT scan could be omitted, which would decrease the radiation dose to the patient and increase time and cost. 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. 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. Its versatile design allows the system to be used in configurations and applications across all construction environments as a standalone solution. Allows development of difficult sites by using attenuation/water storage. If you live close by. To work this out measure the areas your property covers consisting of the external hard surfaces — such as roofs and garages down towards your patios, driveway and paths. The StormMaster Heavy Duty Soak-away and Attenuation Crate is an extremely strong water permeable unit with a large storage capacity. Paired with quality construction supplies, it ensures a foundation that withstands the test of time. This system allows for high-quality root structure of new and existing trees to grow in a healthy and controlled environment. 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. 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. Rainwater tank Carat The new tank generation of Carat rainwater underground tanks has been specially developed for rainwater harvesting. 88 £ 545 . 4m3 per crate) £57. Using the crate stormwater is collected before being held in the crates where water is held and then can either disperse into the ground or be fed back into the mains network. 72 £57. It can be easily installed without heavy machinery one EcoBloc Inspect flex module weighs just 8 kg. Complete crate weighs 9kg. Large net storage volume of 287 litres per crate (302. In this video we take yo. We understand that the installation of a wastewater system is a big investment. 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. Storage capacity of 217 litres. 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. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. 00. In conclusion, the art of gravel application is a fusion of time-honoured techniques and modern innovations. Compressive Strength: Maximum 61 Tonne. AquaCrates are manufactured in the UK to ISO 9001 Quality Standards, from recycled strong copolymer polypropylene. Description. Get in touch 01753 652 555. But, with us you’re guaranteed a tailored service unique to you and your needs. application of stormwater attenuation or infiltration. 03. With a design that ensures that solids are. 01753 652 555 CORE TRADE. Designing attenuation storage for redeveloped sites The authors This factsheet has been prepared by Anthony McCloy of McCloy Consulting. (1) From £ 0. Storage capacity of 217 litres. permeable crate with a 95. Cover depth. 2021 various@a3 p1preliminary for approval ap05. 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. However, an attenuation tank will hold the water and allow it to be channelled to a different place. £69. Drainage anti-flooding blocks or Graf Flood Attenuation Bloc with 300 litre capacity (95% void) for rapid drainage of land. 25m3). £6. “ attenuation in the volume of the sound”. Add to basket. BBA approved. The void created by the crates can then. Underground Rain Harvesting Module Tank For Rainwater Storm Water Collection System Soakaway Infiltration Attenuation Crates , Find Complete Details about Underground Rain Harvesting Module Tank For Rainwater Storm Water Collection System Soakaway Infiltration Attenuation Crates,Rainwater Module,Rain Harvesting Module,Rain. The key element is a flow control chamber to regulate the amount of water. 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). Liked by the question poster. One of the key benefits of this type of system is the modular construction, which allows multiple crates to be built to suit the immediate environment. 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. Contact Us today 01616671241. Depending on environment conditions and the desired storage capacity, these blocks can be installed. the process of making something less or weaker: The airport has undertaken a noise attenuation programme. LLDPE High Strength Impermeable Tank Liner Membrane. 19m3 per crate. Soakaways are generally designed for small usage, like isolated residential properties and permeable ground conditions, like sand or gravel. Stage 3 - Stormwater is held in the tank. 15), pull the geomembrane up the sides of the tank, create ‘bedsheet folds’ to the corners and tape into position. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. 00 out of 5. The inlets/outlets are located in different positions and the crate structure fills when the flow rates exceeds the agreed discharge rate. Description. Ordered terram t1000 Good price Good communication Delivered on time Would recommend. 26 (£30. weakening in force or intensity. Buried 0. 00 out of 5 based on 1 customer rating. These. AquaCell Core-R can also be used in both landscaped and deep. This below ground Rain Bloc crate is a simple an effective way to form an attenuation tank. Soakaway are designed and constructed in a very similar way to attenuation tanks and use the same polymer crate system to create the void. 84m 3. Soakaway and Attenuation Crates PSM1A. The void created by the crates can then fill up with storm water during heavy rainfall conditions. VAT. As a key part of our overall SuDS offering, our Klargester AquaHold attenuation range offers many benefits over traditional crate systems. 95% void ratio giving a holding capacity of 0. High compressive strength – can be located under all roads,Rain Bloc 60 Tonne Soakaway and Attenuation Crate - 0. The plastic driveway grid, with its stability and adaptability, revolutionises the way we approach these projects. It can hold 0. The water is then released from the. attenuation; axe; boil; contraction; damp; fall off; fall off a cliff idiom; falling; falling-off; foreshorten; rightsizing; roll back something; rollback; run someone/something down;. The HydroChamber is an arched chamber attenuation system designed specifically for building underground storage tanks for stormwater runoff in attenuation and soak away applications. Ex VAT Inc VAT. Product Details. Rain Bloc 60 Tonne Soakaway and Attenuation Crate - 0. For both commercial and domestic properties. Dimensions: 1200mm x 600mm x 347mm. Stormwater crates are installed below ground and are used to control the flow of surface water when there is extreme rainfall. Hydrocell Soakaway Crate 62 Ton. 5 metres from the boundary. These two options work in tandem to create a reduced likelihood of flooding due to storms. £58. Visual and maintenance access can be achieved when used in conjunction with Polystorm Access & Polystorm Inspect. Aquacrate Future Build Supplies Ltd 12 x Storm Crates for Soakaway Attenuation, Underground Storm Water Drainage 1000 x 500 x 400 (mm) Suitable for Pedestrian & Transport Applications 62 Tonne. 00 £498. £69. Used in landscaped areas, or in trafficked areas up to a Gross Vehicle Weight (GVW) of 30 tonnes. 1000 x 1000 x 400mm (60 Tonne) Flood Crate Product Code: FC-60 £ 75. co. Modern attenuation crates offer more flexibility when it comes to installation. Attenuation Tanks. 00 each. To get started with the AquaCell Configurator, you'll need the following: The address and postcode of the site. Suitable for water retention, attenuation and infiltration applications. StormCrate55 modular cellular crates are used in storm water retention, attenuation and infiltration applications. 3. Enhance stability & sustainability with IBRAN. Specifically, in clinical practice, during the myocardial perfusion PET and SPECT scan, a CT attenuation correction (CTAC) scan is acquired that visualizes the heart. Stacked on pallets to save space during transport reducing costs and CO 2 emissions. The AquaCell range can be used as either a temporarystorage tank or as a soakaway, and is suitable for applications including landscaped areas, parks, domestic. The crates are designed to be 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. 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. Shop our collection of soakaway crates, attenuation crates & tanks here today from reputable brands like Aquacrate, Polypipe, Graf, Marsh Industries & more!. As part of a heavy water or. SDS GEOlight® has been constructed entirely from post-consumer recycled PVC waste, which is normally destined for landfill. The Pelican Attenuation system is perhaps the UK's first complete attenuation tank system kit. 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. Add to Basket. 5m x 0. 100% recyclable. VAT. Decide on outflow locations (if required - attenuation systems): This would normally be at the base of the unit for attenuation systems and should be of a size required to suit the outflow requirements. 00 15,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. 9 Cubic Metre . To build the attenuation system, the blocks are connected together into a matrix. Code G4110SC; From 3 reviews £45. Figure 3: Continued below. The AquaCrate decreases the inconvenience of flooding during heavy rainfall, with rainwater “cleaned” by the geotextile surround. 25% Off Sold Out. The crates are manufactured from durable plastic which clip together easily to form a box structure. 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. from €3,425. COMMERCIAL SEWAGE TREATMENT PLANTS. This crate is supplied with 4 x clips F. DOMESTIC SEWAGE TREATMENT.