Therefore the above size soakaway will suffice. BBA approved. As a broad brush a Soakaway Size of 1m³ is sufficient to drain a roof area of approximately 50 square metres under normal conditions. 81 £294. VAT. 4m Weight 10. 00 $ 150 . Smaller crates, like 0. 8m³, 1. 5 per cubic metre. Total capacity is a bit under 4,000 litres. Inc. AquaCell Core-R can also be used in both landscaped and deep soakaway applications. £24. 78. Combine it with your soakaway and attenuation to create a tunnel with a permanent load level of up to 59kN/sqm. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. Our range of Soakaway Crates include the Polypipe Polystorm, Polypipe Polystorm Lite, Aqua Storm and the Brett Martin StormCrate. Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in BAHRAIN. Don't forget you will need a membrane such as woven geotextile to wrap the crates to avoid ingress of soil into the void created by the crate. Cat Code 6LB150 Colour Grey Dimensions 1m x 0. EASY Returns & Exchange. Here’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. Here’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. Repeat test three times. The soak pit is to be a hole filled with rocks. AquaCell systems are the answer to the effective management of excessive rainfall, whether through attenuation or infiltration solutions. 54 Excl. FREE NEXT DAY DELIVERY for orders over £100 ordered before 12:00 today (restrictions apply) ; Stock & Delivery Service Update; 01206 572980Welcome to Wavin Tech Tools. 5m for pedestrian areas. 1. Your property's total impermeable area is one of the details you would need to provide to work out how many crates you need. Wavin | WavinThe store will not work correctly in the case when cookies are disabled. EASY Returns & Exchange. comQUICK ADD. Inc. Soakaway crates, also known as attenuation tanks or stormwater crates, are interlocking crate systems that allow surface water to be stored and gradually released back to the ground or sewer network slowly. Capacity – 400 Litres. Take the time that water takes to soakaway. Made of 100% recycled plastic, modular construction and good resistance to traffic loads. Oase Maxima Pond Soakaway Bo. 09 £621. Pour water to 300mm in depth, measure from the bottom. It is made from 100% recycled plastic. 5m x 0. Whether we have too much or not enough, it is as much a life giving resource as it can be life threatening. Integrated inlet and outlet. The UK's leading manufacturer and supplier of plastic drainage piping solutions for above and below ground projects. Boss Soakaway Kit For Condesning Boilers Travis Perkins. More complex soakaway construction with additional depth, pipework, size or reinforcement. The AquaCell range can be used as either a temporary storage tank or as a soakaway, and is suitable for applications including: Landscaped areas Parks Domestic gardens Residential developments Car parks & roads Industrial/commercial areas AquaCell Plus-R has been designed primarily for use in applications where inspection is required. Soakaway Crates, also known as Attenuation Crates, Storm Cells or Storm Crates, are interlocking crate systems that allow surface water to be stored and gradually released back to the ground or sewer network slowly. FREE Delivery Across BAHRAIN. 450mm Basic Silt Trap Chamber Complete Kit. Polystorm (PSM1) is used for soakaway and attenuation for trafficked applications. £203. Size: 800mm x 500mm x 500mm (0. Polypipe Civils Charnwood Business Park, Loughborough, Leicestershire LE11 1LE Tel: +44 (0) 1509 615100 Fax: +44 (0) 1509 610215 Email: [email protected]. Glsan. A solution to this is to make the area permeable, for instance by using permeable paving or asphalt, or installing soakaway systems. AquaCell Core-R can also be used in both landscaped and deep soakaway applications. 2m3 per crate) £36. FREE Delivery Across Saint Kitts and Nevis. To calculate the size/volume of a rubble-filled soakaway, the same calculation can be used but the result divided by 0. Soakaway crate sizes can vary, but a common size for residential use is around 1m x 1m x 1m. The alternative is a brick structure with gaps between the bricks, on a concrete base, and some sort of lid. Order a Soakaway Crate Kit Online – Easy Cost Effective Solutions. 00 each. . Recharging of local groundwater (if infiltration/soakaway application) Aerobic purification to improve water run-off quality. Where ground has good soakage (such as sand/gravel) then the size/volume of a crate type soakaway can be calculated as follows: Volume = Roof area being drained x (50mm rainfall rate per hr/3000). Inc. ukShop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Canada. Witley Station Yard Station Approach Wormley Surrey, GU8 5TB. 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. Difficult, unusual or larger project with complex pipework, difficult access, deep excavation through hardened. The broad principle of capturing excess surface water in an underground tank that works as a reservoir divides into two key forms: attenuation tanks and soakaways crates (also known as soakaway tanks). We are a national qualified third grade construction contractor which enable us to conduct construction of rainwater harvesting system in China, and we have completed more than 500 large or small. The sustainable infiltration crate Wavin AquaCell makes strong underground rainwater supply at your business premises possible. What are soakaway crates/attenuation tanks? AquaCell. Ideal for lorry-bearing. FREE Delivery Across Mauritius. AquaCrate Soakaway Range – product data. VAT. FREE Delivery Across Sweden. But those are REALLY EXPENSIVE! As I write this, they're more than $2/gallon of storage. FREE Delivery Across LEBANON. Click image to enlarge . Where deep drains are necessary, the hole should conform to this shape at the bottom, but may be enlarged above the 300mm level to enable safe excavation to be carried out. Difficult, unusual or larger project with complex pipework, difficult access, deep excavation through hardened materials (concrete, garden walls etc), disposal of waste material and reinforced materials. 3kg Storage volume 190 litres Void. 1. Soakaway crates for Attenuation and Infiltration. Shop 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Turkey. note if your ground is clay then a soakaway will act as a storage tank not a soakaway. Modular soakaway components. FREE Delivery Across Turkey. Features & Benefits: Brett Martin Cellular Storm Water Crate 55 Tonne - 1200mm x 600mm x 347mm. If creating a larger soakaway through butting and stacking, we recommend connecting using cable ties until the side fill is introduced. Rated 5. Therefore the above size soakaway will suffice. To facilitate this, Geoline Ltd. 5m x 0. Backfill materials. Our popular and cost-effective soakaway crates (AquaCell Core-R) provide the ideal stormwater management solution. The 0. Made of. Cost effective, particularly when used as a hybrid, value engineered system. Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Papua New Guinea. 4m3 per crate) £57. Click image to enlarge . Heavy duty 65T soakaway crates are suitable for vehicle loads up to and exceeding 65T load rating. Wavin AquaCell Core-R Product & Installation Guide . Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Belize. With a 20 tonne per square metre compressive strength it will withstand and support the load of general maintenance vehicles such as grass cutters. Inc. 13. . The sustainable infiltration crate Wavin AquaCell makes strong underground rainwater supply at your business premises possible. 68m in landscaped applications (6. Connect the trenches to flow into the hole. £24. We're an underground modular stormwater infiltration & attenuation tank system China factory,our stormwater modular tank is for building underground stormwater infiltration, attenuation systems. 43m trafficked by cars), and the required cover depth varies subject to the loading - see. cars and HGV’s. VAT. Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Trinidad and Tobago. . Combine it with your soakaway and attenuation to create a tunnel with a permanent load level of up to 59kN/sqm. Helping you meet SUDS requirements Sustainable Drainage Systems (SuDS) is a vital consideration for all new building developments regardless of size. 19m3 per crate. £32. 30. Long term strength, vertical: 153kN/m². The units can be used as a standard soakaway or, if wrapped with an impermeable geo-membrane, they can be linked together, as. Soakaway Crates are quick & simple. Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Guyana. Soakaway crates, also known as attenuation tanks or stormwater crates, are interlocking crate systems that allow surface water to be stored and gradually released back to the ground or sewer network slowly. What sets this Polystorm Crate apart is its efficient interlocking mechanism. In accordance with the recommended. £27. Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in LEBANON. 32 £8. Add 150mm of 20mm pea shingle to the bottom of the pit. It is made from 100% recycled plastic. Order a Soakaway Crate Kit Online – Easy Cost Effective Solutions. 2. cars and HGV’s. AQUACELL POLYSTORM WATER STORAGE 1000x500x400 RC. FREE Delivery Across Sweden. : YBS-M1000 Size: 1000x500x400mm Weight: 16kg/tank Void. The Polystorm Soakaway Crate 1m x 0. The clever design of Rainsmart soakaway crates allows you to stack them all on a shallow, single layer whilst still holding the same amount of stormwater as a standard layout 1. 2m x 1. Wavin | Wavin. The UK's leading manufacturer and supplier of plastic drainage piping solutions for above and below ground projects. Soakaway crates, also known as attenuation tanks or stormwater crates, are interlocking crate systems that allow surface water to be stored and gradually released back to the ground or sewer network slowly. FloPlast 110mm Underground Drainage Double Socket Coupling - Terracotta. 200 to 299. What is an attenuation tank? Soakaway Crates: AquaCell Core-R 60 Tonne Wavin Soakaway Crate - 200 Litres. Modular Aquacell Element For The Construction Of Holding Tanks Scientific Diagram. Large access tunnel (height 320mm and width 172mm nominal. SKU: PO6LB150. 49 ex VAT) Unit price / per Sale Sold out Est. Water directly impacts us and our planet’s ecosystem. Soakaway crates, also known as attenuation tanks or stormwater crates, are interlocking crate systems that allow surface water to be stored and gradually released back to the ground or sewer network slowly. Polystorm Geocellular Features & Benefits. Features & Benefits: AquaCrate Stormwater Soakaway and Attenuation Crate 20 Tonne - 2. AquaCell systems are the answer to the effective management of excessive rainfall, whether through attenuation or infiltration solutions. 68m in landscaped applications (6. From 4 reviews. 2. Pact Transport Trolleys Auer Packaging. Visual and maintenance access can be achieved when used in conjunction with Polystorm Access & Inspect. Lay out the membrane at the bottom of the pit, leaving. 99 (£37. Aquacell® being installed as a large storage system . 3. This allows for the crates (in a 4×4 configuration), 150mm pea shingle (10/20mm) on the sides top and bottom and 400mm of cover over the top. The Polystorm Soakaway Crate 1m x 0. For example, 50m2 roof area requires a rubble-filled soakaway of (50m2x(50/3000))/0. 6m³ kits. Hydrocell Soakaway Crate Kits available in in 0. VAT. 1. In turn, this has prompted designers to rethink how to manage water using Sustainable Drainage Systems (SuDS) such as our AquaCell crates. Aquacell infiltration crate clip Wavin £2. FREE Delivery Across Cayman Islands. Ideal for retention, attenuation or soakaway applications with a suitable geomembrane or geotextile. With a 20 tonne per square metre compressive strength it will withstand and support the load of general maintenance vehicles such as grass cutters. Short term strength, vertical: 562kN/m². . Different types have different void arrangements, which means an open soakaway crate system can be smaller overall than a soakaway backfilled with rubble simply because the open crate is able to store a greater volume of water in the same size excavation. EASY Returns & Exchange. 0m x 1. Hydrocell Soakaway Crate 62 Ton. 30. 00 incl VAT. 23. 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. £4. To download BIM Revit files, please visit My Portal. 5 x 5m Geotextile Membrane; 16 Clips; 8 Shear Connectors Some benefits of AquaCell units include: Significantly reduced flooding risk. In addition to these products a supply and fit service can also be offered for large. The sustainable infiltration crate Wavin AquaCell makes strong underground rainwater supply at your business premises possible. Order your soakaway crates here: GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Antigua and Barbuda. 26 (£30. Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Bangladesh. Short term strength, lateral: 70kN/m². 29 ex VAT) £44. NOTE: Use the Drainage Plant Estimating Calculator to add in plant for the excavation. EASY Returns & Exchange. Soakaway Crate by Stormcrate - 3. Short term strength, vertical: 562kN/m². Unit 200l 6lb200. Hybrid SuDS. Made of. 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. Soakaway crates take run-off water and allow it to slowly [email protected] GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Andorra. £27. 69. 5m x 0. £22. Made of. Soakaway Crates are quick & simple. 5 Per m3. Made of. This should give you a total impermeable area in. EASY Returns & Exchange. It can hold 0. The Soakaway Boxes are manufactured to the same exacting standards as other high-quality brands such as the Wavin Aquacell crates. Made of. This ensures that the soakaway is prevented from fragility without this. The AquaCell range can be used as either a temporarystorage tank or as a soakaway, and is suitable for applications including landscaped areas, parks. 2 m3) Suitable for vehicle loads of up to class D400 (40 Tonne). If you do not understand the formula, the percolation test, or the best way to form a soakaway, then come back and we will point you in right direction. ACO Hexdrain No 19310 Channel + Black Plastic Grating 1000mm A15. 49 ex VAT) Unit price / per Sale Sold out Est. Soakaway Crates: AquaCell Core-R 60 Tonne Wavin Soakaway Crate - 200 Litres Regular price £44. This kit is suitable for. Latest News. Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Aruba. There is a 'pop out' section to connect either a 110mm or 160mm drainage pipe & each crate holds 125 litre of water. 5 Per m3. Order your soakaway crates here: GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Antigua and Barbuda. Hydrocell Soakaway Crate Kits available in in 0. 1. EASY Returns & Exchange. Lot closed - Winning bid: N/A. With the increasing usage of SuDS for drainage, the role of soakaways has never been more important, so their construction and they way in which they work needs to be better understood, which is the aim of this page. Spread the love. 83 per M. . 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. Drainage - Soakaways. 3 Crates per m3, 60 Tonne Rated from Brett Martin. ACO RainDrain Channel and Galvanised Grating A 15 - 118mm x 97mm x 1000mm. It is suitable for a wide range of landscaped and trafficked applications, including: Landscaped Parks. Crates can be combined with waterproof geotextile and pipework to create a system that redirects water at a more acceptable flow rate. Made of. The soakaway must not be near any other soakaway or drainage field, as this would compromise the absorption of the ground. AquaCell Core-R has been designed for use in deep applications, subject to regular and heavy traffic loadings, e. FREE Delivery Across BAHRAIN. 2m³ and 1. The AquaCrate decreases the inconvenience of flooding during heavy rainfall, with rainwater “cleaned” by the geotextile surround. EASY Returns & Exchange. Soakaway crates, also known as attenuation tanks or stormwater crates, are interlocking crate systems that allow surface water to be stored and gradually released back to the ground or sewer network slowly. uk , buy now from Attenuation Tank Crates or call the sales office on 01255 258525. It has a 61 tonnes/m² compressive strength and is manufactured from over 90% recycled material content. desertcart delivers the most unique and largest selection of products from across the world especially from the US, UK and India. Wavin | WavinIf you need to do a percolation test then: 1. FREE shipping and FAST delivery. 1. FREE Delivery Across Mauritius. 48. 3D flow throughout the structure. Your property's total impermeable area is one of the details you would need to provide to work out how many crates you need. Solutions encompass urban trees, Blue-Green roofs, podium decks, gardens, sports pitches and SuDS aiming at water sensitive design. £24. 2m x 1. AquaCell Eco. Select the right Modular Cell. Here’s a quick run through the basic steps of soakaway installation: Dig out a pit in the ground for your crates to sit in. g. FREE Delivery Across Slovakia. Soakaway crates are a popular solution for managing stormwater runoff, as they allow water to percolate into the ground. 5 metres from the boundary. 24 Kg. 2m³ and 1. 5m, are used for compact spaces. 95% void ratio. Step 2. by Wavin Ltd Add to collection. GT 500 2000 gauge Impermeable Tank Line Membrane. Call Australia-wide on 1300 AQUACELL. AquaCell Core-R units are a fully tried and tested modular technique for managing excessive rainfall. Shipping info. Using 20mm limestone gravel or the equivalent, fill the bottom of the pit to 50mm and level off. Size: 800mm x 500mm x 500mm (0. AQUACELL CORE-R 6LB150 CRATE. Soakaway crates, also known as attenuation tanks or stormwater crates, are interlocking crate systems that allow surface water to be stored and gradually released back to the ground or sewer network slowly. To create a soakaway of a general size of 1mtr cubed (1 m3) you will require 5 crates. Permeable & Non-permeable Membranes. 00 incl VAT. they are basically plastic milk crates available in either pedesrtrian or traffic duty. Order: 1 cubic meter Min. Soakaway crates, also known as attenuation tanks or stormwater crates, are interlocking crate systems that allow surface water to be stored and gradually released back to the ground or sewer network slowly. 65 Incl. Add to basket. 4m in size. Percolation test procedure for surface water soakaways. 82-second video: See how the innovative design of AquaCell NG makes attenuation tank construction faster and easier with push-ft and click-and-go connections, ease of handling and smart clips for the geotextile wrap. Polystorm-R has been designed to provide surface water retention, surface water attenuation or surface water infiltration as a soakaway solution at a variety of. Service you would expect from a recommended trusted UK company. co. 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. CHOOSE OPTIONS. AquaCell Core-R can also be used in both landscaped and deep soakaway applications. A soakaway is the name for a pit filled with rubble or hard core that helps water drain slowly into the soil around it. by Wavin Ltd Add to collection. It is suitable for installations to a maximum depth of 6. VAT. 100x1. Service you would expect from a recommended trusted UK company. This item: CORE Water | Soakaway Crates | Attenuation, Infiltration, Stormwater Retention Crate for Residential and Commercial Projects | Perfect for Flood Mitigation, Stormwater Management System $150. Domestic gardens. 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. EASY Returns & Exchange. 90. 8m³, 1. Delivery or pick up local to you Wavin Aquacell from a highly recommended trusted company. The water table should not reach the bottom of the pit at any time of the year. 95% void ratio. Polypipe Civils Charnwood Business Park, Loughborough, Leicestershire LE11 1LE Tel: +44 (0) 1509 615100 Fax: +44 (0) 1509 610215 Email: civils@polypipe. These modular water storage cells have a. I bought the heavy duty blue Aquacell crates cheaply from a ground works chap that had a yard full of them "left over from another job". 100% recyclable. FREE Delivery Across Albania. A soakaway must be 2. uk , buy now from Attenuation Tank Crates or call the sales office on 01255 258525. Our suite of free, simple to use tools have been designed to help design water management. 5mtr x 100mtr Roll. GRAF UK Ltd: Beaumont Road Banbury, UK-OX16 1RH: info@grafuk. Nominal size – 1000 x 1000 x 400mm – 2. AquaCell Core-R has been designed for use in deep applications, subject to regular and heavy traffic loadings, e. 1. Maxi Transport Trolley Auer Packaging. Q-Bic Plus BIM enabled, BBA approved, adoptable and fully compliant with Ofwat’s Design. 6m³ kits. cars and HGV’s. 5m x 0. Date/ Time: 2023-02-14 18:00:00 GMT 2023-02-14 18:00:00 GMT. Previous. 00-120. Rainsmart Ellipse Soakaway Set Assembled with Silt Trap & Lid 1 Cubic Metre. Description. 6,000 crates. 1. Code 90004M3K. Buy soakaway crates at: Full soakaway crates installation demonstration: AquaCrate Stormwater Soakaway and Attenuation Crate 20 Tonne - 2. Easy to handle and install. 5m, are used for compact spaces. 1. These PSM1A crates are a fantastic alternative to the Aquacell soakaway crates. Jul 1, 2021 - Rainwater harvesting system is also called Rainwater collection system, it consists of plastic modular rainwater tank,geo membrane,geo textile,and other parts. 5m deep filled with various sizes of limestone rock, it worked perfectly and probably would of easily taken the extra extension water, we just didn't know it was that big till we. Welcome to Wavin Tech Tools. Car parks & roads. The process is as follow: Bore a hole 150mm dia to 1m below ground level. 4 m³ with an approx. 40 tonne/m2 load bearing capacity. Each crate is 0. 2m³ and 1. Our cost-effective soakaway crates provide the ideal stormwater attenuation solution to prevent flooding. 5m x 0. 50m 2 x (50/3000) = 0. 4 crates and would require 750mm of cover for traffic or 500mm for non-traffic use. Ultimately, our goal is to achieve Net Zero Carbon emissions by 2050. The Wavin Core-R Modular Unit is part of the AquaCell range of geocellular systems that is a fully tried and tested, BBA approved, modular technique for managing excessive rainfall. 5m x 0. Recommended minimum cover level depth required is 0. Capacity: Up to 120L (8 crates = 1m³) Colour: Black. Shop GS1 UK 12 x Wavin Osma Aquacell Eco Black non traffic Garden Storm Crate Crates Soakaway 1000mm x 500mm x 400mm 195 Litres Per Crate online at best prices at desertcart - the best international shopping platform in Saint Kitts and Nevis. 8m high SM COOPER & ASSOCIATES LTD . AquaCell Core-R can also be used in both landscaped and deep soakaway applications. They hold much more water in flood conditions asuming the water table isn't too high to start with and don't sink as much if say under a. They allow surface water to be stored in one location and gradually. Largest range of Soakaway Crates and Attenuation Cells for Drainage in the UK. The sustainable infiltration crate Wavin AquaCell makes strong underground rainwater supply at your business premises possible. A series of before and after photos will be taken to confirm the crate system has, as far as possible, been cleared of sediment*. Polystorm: an 8 Step Guide. £3000+. 49 ex VAT) Regular price Sale price £44. The base should be a 100mm layer of sharp sand, and surrounding the crates there needs to be a 100mm of gravel and a 500mm layer above. Made of. 5 litres to fill a volume of this size.