Dimension: 1000mm x 1000mm x 400mm. 5m x 0. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. 5m x 0. VATFrom £ 0. They are also suitable for use beneath car parks. ACO have created a unique comparison guide below designed as a useful tool for specifying stormwater solutions. Features & Benefits. 2. Brett Martin Cellular Storm Water Crate 55 Tonne - 1200mm x 600mm x 347mm. This is provided free of charge from JDP Technical Support. From £3,669. 2m3 per crate. At Moore Concrete we can design and install this product based on your desired needs and specifications. Shop. Underground Rain Harvesting Module Tank for Rainwater Storm water Collection System Soakaway Infiltration Attenuation Crates $95. Infiltration Tank #M2016S. 25m3 of water. If the crates are used for attenuation, the water will drain away slowly into the drainage system. Variobox attenuation systems for stormwater retention are the strongest available. If purchasing in bulk give us a call so we can offer you the best price. A soakaway size of 1m3 is sufficient to drain a roof area of approximatley 50m2 under normal ground conditions. The tool is designed to be used with a minimum of information by users who need not be drainage engineers. StormCrate55 Cellular Storm Water Crate 55 Tonne - 1200mm x 600mm x 347mm. When calculating the size of the area that needs excavating, remember to allow extra width, length and depth for a base, side and backfill. Other factors to take into consideration include the expected flow rate and the type of soil in the ground. Its superior design makes it suitable for building storage tanks under HGV trafficked and car park areas as well as non-trafficked areas (e. 00 out of 5. If purchasing in bulk give us a call so we can offer you the best price. The modules are manufactured using recycled materials and provide a lightweight, structural component to an engineered design. 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. 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. co. 3 crates per m3 gross volume). These types of crates are. 354mm in length, 708mm in width, 150mm in height. Capacity: 400 litres (2. Step 2 – Prepare the crates. 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. Iplex Aquacell® is a stormwater management cell designed for use in infiltration, attenuation or storage / reuse applications. 11 ex VAT. 54 Excl. The contribution of such systems to the carbon footprint of towns and neighbourhoods is largely unknown. The JFC HydroChamber is an arched chamber attenuation system designed specifically for building underground storage tanks for stormwater runoff in attenuation and soak away applications. Compressive Strength: Maximum 55 Tonne. This product can bear up to 20 tonnes and is 1m x 1m x 0. 285 m3), please also consider the stacking arrangement : No. Rain Bloc Stormwater Attenuation/Soakaway Crate. Stackable Crates: Stackable stormwater attenuation crates offer a modular design that provides. Attenuation has become an important consideration for any new build project where a SUDS strategy is required. 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 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. From £3,669. 28′ x 1. We can also offer an installation service if required. 6m for car park use, the Naylor Aquavoid-Metro can also be. 5 metres 2 metres. These strong, long lasting and eco-friendly crates are ideal for use in residential, commercial, industrial or retail areas including car parks. Features. Ecomerchant AquaCrate Attenuation & Soak-Away Crate 20 Tonne To 50 Tonnes Loading Capacity. Just another day of the office for the Graf UK team 👷🏻♂️ For this project our engineers constructed a 149m3 EcoBloc Light stormwater attenuation tank for a…Soakaway Crates Recycled Plastic Stormwater Attenuation Crates Our soakaway crates are used to create underground permeable infiltration schemes, water storage and attenuation systems. 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. €POA. With a 20 tonne per square metre compressive strength it. Your property's total impermeable area is one of the details you would need to provide to work out how many crates you need. 4m3, 400L) 2. Modular stormwater crate systems. The ready to install units are preformed to provide an underground stormwater storage facility, for the application of stormwater attenuation or infiltration. £60. Attenuation Tank, B. Our EcoBloc stormwater attenuation crates are renowned for their modular nature,. KLARGESTER AQUAHOLD SM05 - 5,000 litres. Complete crate weighs 11. Four StormCrates per 1m³; 95% void ratio Here at Drainage Superstore, we have a number of soakaway crates to choose from. Stormwater Retention and INFILTRATION. 7 · 276 views. The crates are a single piece and. The HydroChamber is an arched chamber attenuation system designed specifically for building underground storage tanks for stormwater runoff in attenuation and soak away applications. Follow these 6 simple steps to install soakaway crates – both quickly and correctly: Step 1 – Create space. com. Home. Live. Other factors to take into consideration include the expected flow rate and the type of soil in the ground. The system was created using stormwater attenuation crates, which offer an economical and versatile solution to stormwater management. Choosing a stormwater attenuation tank size. Waste and water attenuation. 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. • Graf Stormwater soakaway crates: 3. 3 crates per m 3. The individual crates were lowered into the excavated area and then interconnected to form one huge below ground holding tank, measuring 355. Stormwater is the excess rainwater that flows from rooftops, roads, car parks and other buildings. Stormwater Attenuation Case studies. The crates interlock to create a substantial below-ground holding chamber or to facilitate stormwater infiltration into the adjoining earth. BBA approved. Used in landscaped areas, or in trafficked areas up to a Gross Vehicle Weight (GVW) of 30 tonnes. Stormwater Attenuation Tank #M2015H. 0%. Most people associate the use of modern soakaway crates with infiltration use. With its dimensions of 1200mm x 600mm x 347mm, it can hold up to 0. Stormwater Attenuation Crates for Stormwater Attenuation Tank System. The soakaway crates have various load ratings that indicate their storage capacity. 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. In this way we can avoid or prevent from flooding. Specifications of our systems. In the tank is method of releasing storm water at a rate the drains can handle without backing up. The void created by the crates can then fill up with storm water during heavy rainfall conditions. They plan an important role in protecting people, property, and local land from the build-up of rainwater during heavy downfall periods and can be used. 8% void ratio, allowing rainwater run off to be temporarily stored and then released gradually, either into the soil acting as a. Documentation. Geocellular crate for soakaway (infiltration) or storage (attenuation) applications for surface and storm water. We've just completed the installation of a cutting-edge 465m3 Ecobloc Maxx Stormwater Attenuation Tank. from €1,914. FLI Precast supply award-winning Stormwater Attenuation Tanks. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. Skip to content +353 59 915 9550 +44 1279 423303 [email protected] IRE; UK [email protected] MENU. This product can bear up to 62 tonnes and is 1m x 0. Min. Ordered terram t1000 Good price Good communication Delivered on time Would recommend. 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. 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 during a storm. If you're planning a project using Attenuation Tanks. The StormHarvester Active Attenuation System enables water to be held within attenuation tanks. 300L. 64′ x 1. Stormwater Attenuation Tank | Soakaway Crates | Infiltration Tanks | Modular. If the crates are used for attenuation, the water will drain away slowly into the drainage system. These soakaway crates (Polystorm) clip together to form a load-bearing underground water storage/attenuation system. 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: 98L/tank Weight: 7. We can also install too. The crate structure is surrounded with a permeable non-woven geotextile to prevent any ingress of silt to the crate structure. The crates are a single piece and. Stage 1 - Stormwater flows into a silt trap (or catchpit) to catch debris, improve water quality & prevent blockages further in the system. Hybrid SuDS. Soakaway crates are modular, meaning they can be stacked on top of or next to one another. From £269. Find a stockist. From £269. The surface water run-off is slowed down before it is. The unit is available in two standard depths of 1. Used in landscaped areas, or in trafficked areas up to a Gross Vehicle Weight (GVW) of 30 tonnes. Of our clients recommend us. Designed for landscaped, pedestrian or other non-loaded applications. Add to basket. The drainage system and water storage-permeation and filtration system along side the roads, parking lot, water storage and drainage for the ecological shallow ridges, living community, factories and enterprises, municipal roads, viaducts. 8m. 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. 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. 0138 m3 (void ratio 95. 83 inc VAT) KLARGESTER AQUAHOLD SM Range 14,000 - 29,000 litres. The void created by the storm crates can then fil up in heavy rainfall and let the. We can also offer an installation service if required. 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. has partnered up with a number of UK manufacturers. uk 3. 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. Flexible design. For both commercial and domestic properties. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. Where the previous two methods of storm attenuation simply caught water from their surrounding area, a separate tank has the ability to capture water from a very wide area using connected pipes, and collect it all together. Balancing ponds are a cost-effective solution for managing stormwater run-off providing development. This provides both unit to unitunderground stormwater storage facility, for the application of stormwater attenuation or infiltration. We can often suggest alternative brands that will achieve the same result and save you money. Stormwater attenuation and infiltration/soakaway crates ACO StormBrixx is a unique and patented plastic geocellular stormwater management system for attenuation and soakaway (infiltration) usage. If purchasing in bulk give us a call so we can offer you the best price. . A few pointers are noted as follows: What is Q-Bic Plus? 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. Domestic gardens. StormTech offers a cost-effective solution for stormwater attenuation by including a FREE integrated water quality treatment system. Features & Benefits: Storage capacity of 290 litres. FREE shipping and FAST delivery. The. Cotterill Civils have years of experience in supplying Land Drainage and Sewer Treatment solutions to clients across the UK. Graf UK Ltd posted a video to. StormMaster is an innovative company specialising in underground infiltration and attenuation tanks in connection with sustainable urban drainage (SUDs) schemes. It provides a versatile solution for stormwater management (refer Iplex Aquacell. from €3,425. 5 yrs CN Supplier . It can hold 0. • ACO StormBrixx soakaway crates: 2. If you are installing an attenuation tank system, in addition to the geotextile you will need to use a geomembrane to ensure the water is retained within the attenuation cells. View products. The crates are ideal for soakaways and attenuation tanks specified by planning and building control. 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. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. When covered with non-woven geo-textile, it can build. Benefits of Using. 00 Incl. 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. 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. Graf Rain Bloc Stormwater Attenuation Crate - 3. Optimised design, engineered to last. What are soakaway crates/attenuation tanks? Soakaway crates, also known as. Attenuation crates (also known as stormwater crates) are systems used to store excess groundwater run-off so it can be safely discharged back into the environment to reduce the risk of floods. Tanks Direct offer a range of Klargester GRP attenuation tanks, providing a suitable alternative to traditional large pipes and attenuation crates solutions. Being experts in Sewage Treatment & Septic Tank Installations, we’re confident we can provide a solution that will last! Enquire Now. A solution to this is to make the area permeable, for instance by using permeable paving or asphalt, or installing soakaway systems. Or click here to find out more. A solution to this is to make the area permeable, for instance by using permeable paving or asphalt, or installing soakaway systems. 5 Per m3. 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. 3 Crates make up 1m3. 0. ACO StormBrixx is designed to optimize stormwater management via soakaway or attenuation by pairing a high void ratio with integral access chambers and an open cell structure for easier inspection. This water can then be re-used on-site. 4. AquaCell NG is designed primarily for landscaped and light. For attenuation of the storm or surface water, you must wrap crates in a damp-proof membrane to hold the water. Take water infiltration into your own hands with our reliable and durable soakaway drainage solutions. Each soakaway crate is a different size, therefore the brand you choose can determine the number of crates required for your attenuation system. Features & Benefits: Brett Martin Cellular Storm Water Crate 55 Tonne - 1200mm x 600mm x 347mm. From £6,019. 00 7,500 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. 5m x 0. Rainwater tank Carat The new tank generation of Carat rainwater underground tanks has been specially developed for rainwater harvesting. Try to ensure that the sides and bottom of the excavation are straight and square. 4 m³ with an approx. Inquiry Now! Dimensions: 1200mm (L) x 600mm (W) x 347mm (H) Crates Per m3: 4. 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. Innovators in water technology. Our EcoBloc stormwater attenuation crates are renowned for their modular nature, enabling them to fit into small spaces suiting different site specific constraints. of Stormwater Attenuation Tank - Attenuation Crates for. 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. It can hold 0. Contact us at: 1300 765 226 (Australia) +61 2 4747 4000 (Export) sales@acoaus. Soakaways give many advantages such as very less net land take, supports groundwater recharge, peak stormwater flow attenuation, good civil acceptability, easy to build and operate, and can be retrofitted. of. From £3,669. 2m x 0. A stormwater attenuation tank is designed to collect and store excess surface water run-off from a large storm event. 0121 461 5311. Our Polystorm Cell Modular Soakaway and Attenuation Crates PSM1A system provides surface water infiltration, retention or attenuation as a soakaway solution as a variety of depths in loaded and trafficked areas. Delivery. 07 (inc. 00 incl VAT. 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. Back SubmitTo achieve this, a stormwater retention system would be required to capture and store the water on site. Stormwater management system with various applications: Rainwater infiltration, Stormwater attenuation, Rainwater harvesting, 60 tonnes/HS-20, 410 m³ (14. Features & Benefits: Graf Rain Bloc Stormwater Attenuation Crate - 3. SOAKAWAY CRATES FOR DRAINAGE SYSTEM. Call our friendly Customer Services Team on 0117 244 4099 for expert help. 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. Step by step guide to installing a stormwater attenuation tank. This Brett Martin StormCrate55 is a modular cellar crate system designed to be used as attenuation cells or for soakaway applications. 3 crates per m 3. 5m of cover for non vehicular or 0. 5 crates to provide 1. 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. water storage. Attenuation crates, also known as soakaway crates, are used to control the level of surface water and reduce the risk of flooding. These strong, long lasting and eco-friendly crates are ideal for use in residential, commercial,. Please get in contact – 0121 351 3230. Storage Volume: 237. To facilitate this, Geoline Ltd. If you have already calculated your storage volume, you'll need that figure and the below: An idea of your tank dimensions. 35’ x 1. While digging the hole, look out for changes in soil characteristics at different. Loading type. au. 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. While mimicking effectively the natural flows, the frequency and rate of release is designed and worked out accordingly. Geocellular attenuation tanks or attenuation crates are also extremely space efficient, with a typical surface water holding capacity of 95% or above. Our storm attenuation systems are used to manage excess rainfall on new developments by collecting, storing and releasing stormwater in a controlled manner to local watercourses. £60. StormCrate is a cellular stormwater attenuation crate. Order: 10 cubic meters. We can provide you with expert advice on the different options available to you, including storm crates and bespoke stormwater attenuation tanks. £69. Delivery Info:KLARGESTER AQUAHOLD - Surface Water Storage Tanks Range. 00 Incl. Durable and long-lasting. 9 /5 · 5 reviews · "Fast shipment". Inlet to soakaway/attenuation tank 4. Allied to SDS SYMBiotIC™ smart monitoring and control these devices protect nature-based solutions from the impacts of. This inspectable crate has a variety of applications, including stormwater attenuation and soakaway tanks. From £269. Delivery. 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. 19m3 per crate. 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. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. 28 ft x 3. Explore our wide range of durable and efficient products and make your selection today. Rain Bloc Stormwater Attenuation/Soakaway Crate. The installation of storm pipes is quick and easy. 65 Incl. The CORE Water Crate is the perfect product for creating soakaways in residential and commercial projects. SuDS systems use a holding area (the “attenuation tank” or “attenuation crate”) that fills up during heavy rain. Size: 2. 0121 351 3230. Its flexible modular structure is light but strong, making it ideal for use beneath areas such as roads, car parks and industrial areas. This product can bear up to 65 tonnes and is 1m x 0. The system is comprised of base plates, crates and side. Adopting imported Polypropylene Copolymer as the raw material, which ensures the high-temperature resisting, acid-resisting, alkali-resisting and long lasting service. Head office: 134-140 Old Bathurst Road Emu Plains NSW 2750 Australia. If purchasing in bulk give us a call so we can offer you the best price. An online attenuation system means the total volume of rainwater passes through the crate structure. The stored water inside the attenuation tank is released via a flow-control chamber and either pumped via a pumping chamber or run-off through a. Doctor Rain is the leading manufacturer for. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. This product can bear up to 62 tonnes and is 1m x 0. Reviews. Amazon. Size: 3. 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. 5. These strong, long lasting and eco-friendly crates are ideal for use in residential, commercial,. 480 ft³)/Truck The GRAF EcoBloc Maxx is the ultimate stormwater management solution designed for versatile applications including soakaway, stormwater attenuation, and rainwater. Attenuation tanks Green roofs (*) SuDS Manual Page References will be included once the SuDS Manual update has been completed. Email: info@carlowconcrete. Our easy-to-assemble crate can be installed beneath gardens, pedestrian areas and. The stored. As such, it’s an attractive alternative to crates, pipes and vaulted systems with numerous benefits. . The stored rainwater can then be slowly released into the sewer system, reducing the risk of flash floods. 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. Features & Benefits: ACO RoofBloxx Water Attenuation Crate. 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. Providing efficient control over stormwater surface runoff, our soakaway crate systems ensure that excess water is safely retained and gradually discharged back into the soil, reducing the risk of flooding and. green amenity areas). Iplex Aquacell® is a stormwater management cell designed for use in infiltration, attenuation or storage / reuse applications. Stormwater Attenuation & Soakaway Crates. 0m x 0. Bespoke stormwater attenuation tanks. Introduction: Attenuation cells, (also known as Storm Cells, Soakaway Modules, and Storm Crates) are the modern equivalent of a soakaway. 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). Polystorm Crate. Domestic Soakaways are typically 1-3 m3 so please select the number required. 5 crates required per cubic metre (1m3) 200 kN/m2 compressive strength (Domestic Duty) Maintenance free - silt removed before crate using geotextile fabric; Light weight and easy to handleEst. However, if you are using them for infiltration, the water will slowly soak away into the groundwater table. Our Pipelife Stormbox is the heart of our stormwater management system. 1. Stormwater Retention Tanks. 00 10,000 litre SuDS Rainwater Attenuation Tank with integrated flow regulator. Where the water tanks simply catch water, the crate system can be used to cover a large area that is interlinked such as A carpark. 28 ft x 4 inches). The stored water is then released once the flow has decreased, ultimately maintain control of the amount of water in the ground, keeping it at. Reservoirs . 0 kg, Base 2. 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. An attenuation tank can be made up of geo-cellular crates, impermeable geomembrane and protective geotextile, to create a watertight storage tank underground. Our soakaway crates clip together to form a load-bearing underground water storage/attenuation system. Buried underground, they provide an effective infiltration system through their sturdy geocellular structure which allows rainwater to drain into. Cost effective, particularly when used as a hybrid, value engineered system. Rainwater attenuation crates are used for a variety of uses. StormCrate is a cellular stormwater attenuation crate. Rain Bloc Stormwater Attenuation/Soakaway Crate. The Polystorm range of products and solutions for attenuation and soakaway applications. Storage Volume: 237. Effective stormwater attenuation relies on the ability of a product to trap and store. Compressive strength of 44 tonnes/m²;. 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 tonnesThe most common approach to creating an underground storage tank is to use; stormwater attenuation. 5m x 0. This allows any construction site to release water at a rate that drains can adequately handle, thereby preventing a flood. Attenuation crates (also known as stormwater crates) are systems used to store excess groundwater run-off so it can be safely discharged back into the environment to reduce the risk of floods. Our range of Soakaway Crates include the Polypipe Polystorm, Polypipe Polystorm Lite, Aqua Storm and the Brett Martin StormCrate. 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. Stormwater Attenuation Tanks, also known as Modular Plastic Geo Cellular Units (egg. Attenuation crates, also known as soakaway crates, are used to control the level of surface water and reduce the risk of flooding. The drainage system and water storage-permeation and filtration system along side the roads, parking lot, water storage and drainage for the ecological. The water is then released from the. The StormMaster Heavy Duty Soak-away and Attenuation Crate is an extremely strong water permeable unit with a large storage capacity. Polystorm: an 8 Step Guide. Sustainable Drainage Systems (SuDS) have revolutionized the way we manage stormwater runoff in new developments. Stormwater management is one of the greatest challenges facing site developers and municipal governments. The tank incorporates a method of releasing stormwater at a flow rate that the storm-water drains can handle without. 00 Graf Infiltration Tunnel Kit for Soakaways, Attenuation and Wastewaster. The Polystorm geocelluar system can also be integrated with Permavoid systems. Rain Bloc Stormwater Attenuation/Soakaway Crate. Stormwater is the excess rainwater that flows from rooftops, roads, car parks and other buildings. Go deeper with Polystorm Deep. Attenuation crates need to be designed to. StormCrates are modular geocellular units which are used predominantly as below ground storm water attenuation, surface water infiltration and soakaway systems. (1) From £ 0. Or click here to find out more. Rainbloc crates (1200x600x420mm, 95% void) (select dimensions required) This below ground Rain Bloc crate is a simple an effective way to form an attenuation tank. Most systems comprise some sort of holding area, often an underground tank, that fills up during a storm. It is suitable for a wide range of landscaped and trafficked applications, including: Landscaped Parks. Car parks & roads. Soakaway Crates (M2016B) Infiltration Tanks (M2016S) Harvesting Module (M2015F). The modular cells combine to provide water storage structures to help with localised flood. Individual cells are assembled together to form an underground structure for use in commercial, industrial or residential sites. What sets this Polystorm Crate apart is its efficient interlocking mechanism. 5m of cover for non vehicular or 0. The solution.