To read more, click here. This is especially important when used in a position such as this, where it will be repeatedly trafficked by vehicles which can nudge the channel out of line or cause settlement, but even when Aco Drive Drain is laid at the edge of a pavement or tight up against a wall, where it's unlikely to be. Technologies plc and part of the worldwide. 4404 (316L) grades of stainless steel. Each drainage system is designed to provide maximum reliability, longevity and durability while preventing hygienic issues that can put your facility at risk. Billericay • Member since 27 Oct 2020 • 5 jobs, 100% positive feedback. They are suitable for all push fit pipe socket systems. Outlet diameter 125, 142 or 200 mm. DR804 ACO Drain Price List 5 of 5 (Spare Parts) 2022. ACO Building Drainage is well equipped to ensure your drainage needs are met whether it’s a bespoke product or an off the shelf product. we care for water. ACO is the pioneer and world leader of modular trench drain systems. 3 Friction lock ensures safe grating retention, yet is. If you decide to proceed with your project, your builder will need to look at Approved Document H for detailed advice on how to comply with. Channels are made from polymer concrete and are supplied complete with galvanized steel grates strong enough to withstand regular residential type car/4WD traffic. The Building Services products collect the water from flat roofs, paved areas and bathrooms, and clean it as required depending on the level of water contamination. This means that an increased level of drainage performance can be achieved compared to simple gravity drainage. ACO Drain systems consist of manufactured modular trench drains made from stainless steel, corrosion resistant polymer concrete, or fiberglass, together with grates from a. - via an existing manhole or existing inspection chamber. nz. Excavations must be made about the center line of proposed drainage run and catch basin. uk Company Registration No: 1854115 VAT No: GB 650 7977 05 ACO Building Drainage Enquiries Team: Tel: +44(0)1462 810421. should be designed by the insulation manufacturer, with ‘design’ falls of no less than 1:60. The dimensions of ACO box and slot channels for concrete, tiles and resin floor can be tailored in cooperation with our technical support team, or using any of the available drainage customisation tools. regulations. ACO Floor Drain is made of stainless steel with or without a integrated foul air trap. ACO World-wide. ACO commercial drainage. ACO supplies A15 pedestrian channels and B125 driveway channel drains, so when you purchase an ACO drain all you need is the information below to find out how to install an. Driveway legislation. Technical Guidance Document H – Drainage and Waste Water Disposal (2016) (1. Extensive greening DIN 1986-100 (Chapter 5. We develop, produce and market water management technologies used in civil engineering, building drainage, gardening and landscaping, and sports arenas. Building Drainage. ACO offers a range of products for drainage and other services both outside and within the building envelope. The stainless steel drainage products in the Building Drainage product line are designed for ultimate hygienic performance, ensuring health & safety of workers, customers and products while still allowing clean- in-place functionality. All building works, except those that are minor and exempted under the First Schedule of the Building Control Regulations, will require plan approval from the Commissioner of Building. 1 Excavation 2 On-Site Fabrications xx ACO Drain. According to the Water Research Centre, Aco Drain is more reliable than concrete drains hydraulic-wise and in terms of sediment buildup. About ACO. ACO Building Drainage offers custom options like this project where we designed and manufactured a 500-foot double containment bio-hazard trench drain system. 28 April 2015 by ACO Water Management. recently started a project on back garden. ACO Channels. ACO ShowerDrain solutions are designed to inspire creative bathroom planning. Product Details. ACO Building Drainage ACO Business Centre Caxton Road Bedford Bedfordshire MK41 0LF *Available in 2015 Tel: +44(0)1462 810400 Fax: +44(0)1462 851490 Email: [email protected] products and dimensioning tools. Appropriate access (including private roads, shared private drives, private drives, car parking and paths) shall be provided to and around the home. ACO DoorWay Drain System Overview PACK CONTENTS ACO Technologies plc ACO Business Park, Hitchin Road, Shefford, Bedfordshire SG17 5TE Tel: 01462 816666 Fax: 01462 815895 e-mail: technologies@aco. ACO World-wide. 2. ACO's portfolio of building drainage also includes products for floor-level bathroom drainage. For the purposes of this chapter, the following definitions apply: Provision to access a sewer or drain for maintenance or inspection and includes any manhole, inspection chamber or rodding eye. Aesthetically pleasing drainage outfall from ACO. In Food & Beverage productions, commercial kitchens or any enterprise, investing in quality floor drainage pays off in a long run. . 2. Our drainage systems offer light to heavy duty solutions for traffic ranging. Cleaning parameters; like temperature, time, flow velocity and concentration of chemicals. ACO Drain is the market leading modular trench drain system manufactured at the company’s modern facilities in Arizona and. Whilst these Building Regulations do not need to be met in the case of an extension, some Local Authorities, Building Control and/or Approved Inspectors may require the need to meet Part M4(1) within a planning approval condition, requiring entrances and exits to the house to be accessible. Suitable for both syphonic, vacuum and gravity drainage solutions. Nominal pipe size. Typically this occurs in installations with flush finish joinery, where a contractor wants to use a precast channel, or where a vehicle trafficked finish is required. 63 19012. 4: The factor by which polymer concrete is stronger than standard concrete (in terms of. ACO. ACO Threshold Drain comes complete with either a silver or black aluminium, CorTen steel or stainless steel Heelguard grating suitable for pedestrian traffic. It is basically a pit in the ground into which flows rainwater drainage. Box 18672, Dubai, United Arab Emirates Telephone: +971 4 880 69 98, Fax: +971 4 880 69 97Welcome to ACO! We specialise in designing and manufacturing high-grade concrete trench drain systems, engineered to tackle water management challenges in any environment. If your property has the wrong drain connections, you could be causing. Underground storm water storage systems. 10. Details. Soakaways can be an ideal drainage solution to deal with rainfall that doesn't naturally drain from your property. Page Updated: October 13, 2023. ACO is the established leader in providing drainage systems for the food service industry. TodayThe ACO Surface Water Management division offers products ranging from light duty residential to heavy duty industrial. ACO commercial drainage. You can also always contact your local planning authority for further advice. For example, in the case of driveways we. 1/8" [3mm] Exposed Asphalt Pavement K1D-A-EAP K100 - KLASSIKDRAIN - LOAD CLASS: A DATE: ACO Polymer Products, Inc. Our humble beginnings pioneered the concept of modular trench drains in North America. The rain water is supposed to drain into an aco channel. Downpipe Connector 68mm Round (27120) Overall dimensions length 142mm x width 133mm x depth 48mm. drainage. The extremely smooth electro-polished surfaces guarantee safe drainage and hygiene in bathrooms. Project requirement: Integrated design Project name: M5 Michaelwood services integrated. Building Contractors Limited. - Sponsored events. BIM models are available in ACO Building Drainage BIM Revit libraries; Certified according to EN 1253-1; Hygienic design following EN 1672, EN ISO 14159 and EHEDG document 8, 13 and 44; Available in 1. Available in 1. For example, in the case of driveways we. 33 litres/second. These areas are often more exposed, receiving rainwater from the surface area plus other contributing areas, including run-down from the façade. Siphonic drainage can be used on membrane, concrete and gravel roofs as well as on green roofs with extensive planting. Item no. Learn more about our design services and search products by application. 1. Ensure water falls away from the doorway in a single direction, and make sure there are no cross falls. Say goodbye to expensive repairs! Aco Drain’s reduced maintenance costs will save you money. Installation and maintenance. ACO Building Drainage ACO Building Drainage Our built environment is becoming ever more complex. 4301 (304) or 1. O. Hello!Garden rake. ACO Kenya Allianz Plaza Building 2nd floor 96 Riverside Drive Nairobi Kenya: ACO Nigeria 5 Louis Solomon CI, Victoria Island Lagos Nigeria: ACO. Available in 1. Light liquids and solids separators made from plastics. Service & Support. ACO Technologies plc and its subsidiary undertakings (hereinafter collectively referred to as “ACO”) is a wholly-owned subsidiary of ACO Severin Ahlmann Holdings GmbH incorporated in Germany. The DrainMat system is compliant with Part M of Building Regulations for England and Wales and also section 4 of the Scottish Building Standards. All the drainage products we supply are durable and proven to last. Watch on. Our mission: toOur RainDrain B 125 installation tutorial shows you how easy and quick it is to prepare and install ACO RainDrain B 125 drainage channels and accessories. AS350 channel for Bi-fold doors. Building Regulations. Manufactured from austenitic stainless steel, ACO linear wet. 88 172 200 6. Founded in Schleswig-Holstein in 1946, it operates as a transnational network in over 50 countries. Suitable for use in Building Regulations Part M compliant installations in England and Wales and Building Standards Section 4 compliant installations in Scotland. Channels are made. ACO Systems FZE. Location flange or integrated membrane flange for either adhesive bonding or mechanical clamp. Foul air trap + silt basket (for outlet 110 mm) Suitable for. A strong brand around the world. - via a new inspection chamber or new manhole. ACO Building Drainage. Environmental regulations plus strict. ACO is a global leader in the design and manufacture of drainage systems whether they are used for general surface water management or in building drainage applications. ACO World-wide. ACO DrainMat comes in two types of bases; polymer or polypropylene. Welcome to ACO Building Drainage . The connection height of 15 cm for structural waterproofing, which is specified by DIN 18531 and the Flat Roof Directive, can be reduced to 5 cm by utilising ACO Profiline X in the door area. V-shaped bottom for better water flow even at low flow rates and for better self-cleaning performance. ConclusionACO Hexdrain Channel Drain End Caps and Outlet Accessories Pack. ACO Self ACO ThresholdDrain. ACO is the global leader, and pioneer, of modular trench drain systems. A drain can be installed between the sill and external landscaping flush with the level floor or hidden under the finishes. Design with horizontal border support for optimal liquid waterproofing under the tile. ACO Building Services therefore has no syphonic drainage sys-tems specially for parking deck drains. These products are designed, manufactured and tested for high performance in applications where a clean environment is crucial to the business functions. Fully pickled and passivated. ACO DRAIN® ParkDeck channels. The drainage system should be able to drain off large amounts of water quickly to avoid puddles. Created Date: 3/23/2021 9:27:20 AM. Most ranges of ACO channel drainage systems are CE marked with certificates of conformity to BS EN 1433. Underground ducting must be colour-coded legally to comply with safety and building regulations. ACO Threshold Drain comes complete with either a silver or black aluminium, CorTen steel or stainless steel Heelguard grating suitable for pedestrian traffic. Answered 28th Oct 2020. 30 mins to drain. ACO Building Drainage is a division of ACO. Company Number: 02790259 • VAT Registration: 726 4860 18. Hygienic design following EN 1672, EN ISO 14159 and EHEDG document 8, 13 and 44. They can be a bit of a sod to shift--the covers-- and same goes to refitting them, so before doing so, clear edges of grate with a screw driver or scraper. The polymer concrete base is available in three sizes and the polypropylene in one size. I o o reth a n39 0 pl y d i v 40 c oun t ri es hg w ld. Wherever roofs are drained, pipe systems made of highly stable materials are used. Contact; Download. ACO MultiDrain Monoblock PD100D is 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. ACO stands for professional drainage, efficient cleaning, and the controlled discharge or reuse of water. The Aco Drive Drain system is a surface drain. ACO Food ACO Gully ACO Pipe ACO Buildline. We engineer high performance drainage channels, gullies and systems for a wide range of commercial, industrial and residential applications. Flat roof gullies for gravity drainage are used for draining small flat roofs with a surface area of less than 150 m2 per gully. Guidance for foul drainage ensures that: Any blockage risks are kept to a minimum; Foul air from the drainage system is not allowed to enter buildingsThe specified car park drainage systems must account for the frequency of traffic, as well as pedestrian safety. ACO Drain consists of cast polymer concrete bodies with either galvanized steel, stainless steel or cast iron wearing edges. Generally a new driveway or patio area does not require building regulations approval. The seals, joints and thickness of the materials are guarantees for low noise emissions. Order information. - via an existing manhole or existing inspection chamber. The ACO Group Founded in 1946, the ACO Group manufactures products for the building and construction industry. Lawsons Whetstone Ltd TA AVS Fencing & Landscaping Supplies. Assuming it is a combined SVP, then the building regulations set out maximum distances that a fitting such as a bath, WC, sink and so on can be from that SVP. We can help with all of your construction needs. ACO Drain. 5) July 2011 Post on 07-Jul-2020 6 viewsUse in conjunction with ACO stainless steel gully and channel systems to provide a complete building drainage solution. When connecting to a pre-existing drain or sewer, try to make sure this. The ACO Group is one of the world market leaders in drainage technology. Ensure water falls away from the doorway in a single direction and make sure there are no cross falls. 4301 (304) or 1. Contact. co. Wastewater is collected in a controlled manner and reused in a hygienic, ecologically and economically sensible manner. Double lip seal push-fit connection for easy and reliable installation. ACO Building Drainage is well equipped to ensure your drainage needs are met whether it’s a bespoke product or an off the shelf product. Issues to be taken into account include: general construction considerations. Approved Document L: Conservation of . French Drains – How They Work. Our products can be used in conjunction with water reuse and harvesting programs. The most straight forward solution would seem to be to use an existing surface water drain. Please refer to our article “What’s. The role of the driveway has changed significantly over the last 12 months. All that Part C requires is for the external surfaces, which means paving, to be 150mm below DPC, except. КонтактиThe ACO Profiline Free channel system from ACO offers a self-contained, standard and DIN-compliant device for the transition from inside to outside. Interested persons are invited to lodge with the Director-General, South African Bureau of Standards, Private. Where a channel drain is being inserted within an existing slab, in a box-out cut or cast within a slab, a minimum 25 mm clearance around the channel is required for grouting. Application for approval of structural plans - Form BCA-BE-STAPPV01 (BEV/A1). The ACO Group is a global family business that is one of the world market leaders in the Water-Tech segment. Eliminates the risk of direct blockages and allows full flow. In food and beverage processing facilities, drainage has a major impact. However, this is often inappropriately chosen. The full range of ACO Drain products can be used in level thresholds, under the right circumstances. ACO industrial building drainage can be easily specified in respect of project requirements. Suitable for use in Building Regulations Part M. Introduction to ACO MultiDrain™ PPDACO Polymer Products, Inc. by using the ACO linear drainage sys-tems near the door. find out more. Shape and length stability are. Suitable for all floor types including vinyl flooring. Fully welded hygienic joints. The system is compliant with Part M of the Building Regulations for England and Wales and Section 4 of the Scottish Building Standards. com ) can provide a complete solution for drainage systems. 1,5 mm. Snow drifts in front of doors thaw. Tel: +44 (0)1462 810431. The Group has sales in excess of £600 million worldwide with production facilities in the UK, Germany, France, Sw it zer and,D m k p Po C ch R ep ub lic, As tr and h US . There are 4 ways to connect new drainage to an existing system:-. Contact Information Phone: 1 (800) 543-4764. “Creating the future of drainage“ is a part of our brand identity. The ACO DRAIN programme is a genuine modular system: individual, personalised solutions can be combined from a range of channels, gratings and system accessories such as sump boxes a system which will convince you in terms of technology and economy. In simple terms, any new driveway over 5m2 must provide a drainage system for the water to run to a permeable area. For more details, visit the website. Certified according to EN 1253-1 and EN 1433. Suitable for use in Building Regulations Part M compliant installations in England and Wales and Building Standards. Most are variations on the theme of an enclosed channel, typically with a u-shaped cross-section and some form of grating over the top. Rainwater disposal from roofs and balconies 6m2 or less in area. 6. co. Add a 50mm layer of bedding aggregate to the bottom of. . t: 0700 20 900 | e: office@aco. 73 MB) Technical Guidance Document H – Drainage and Waste Water Disposal (2016) amends the current 2010 edition of TGD H in order to call up requirements under S. These issues are not explicitily mentioned in our installation manuals, because in. - Professional development training. Clear a trench to suite the channel and lay 50mm (min) bed of concrete. ACO stands for professional drainage, efficient cleaning, and the controlled discharge or reuse of water. In Food & Beverage productions, commercial kitchens or any enterprise, investing in quality floor drainage pays off in a long run. ACO Systems FZE. ACO Building Drainage cast iron Car park Gullies are designed specifically for trafficked car park applications with direct vehicle access providing a robust, compact and durable drainage solution. Created Date: 3/19/2021 4:38:43 PM. Contact us today! (520) 421-9988. Flowrate depending on grating and floor drain: Design profil Stripes: Floor drain S+ with water trap 50 mm (DIN EN 1253-1) 0,8 l/s with 20 mm build up. Modular system in elements from 50 cm to 3 m connectable through flanges equipped with gaskets and bolts for a perfect water-tight fit. The flow rate table above illustrates flow rate capacities for non-standard products. Appeal Board Decision #1235. You can also always contact your local planning authority for further advice. The ACO Building Drainage Division offer from simple standard to complex and sophisticated drain products. reserves the right to change products and specifi cations without notice. Please use the links below to access the area of your interest. Sentence 4. 0,6 l/s with 20 mm build up. With the increase in litigation and compensation for injuries caused by slips, trips and falls, designers must consider specifying grates and floor surfaces that comply with AS 4586 – Slip resistance classifications of new pedestrian surface materials. ACO Building Drainage is well equipped to ensure your drainage needs are met whether it’s a bespoke product or an off the shelf product. - via a new branch junction or access chamber to an existing pipeline. 6. Connecting aco drains into sewer drain may cause foul drain smell to come though I would not recommend you could use a slim aco 25mm thick this would go behind a gully. For instance, this standard recommends. Amendment of the Flat Roof Directive. In addition, we also service attractive niche markets such as track and field construction, agricultural construction, iron casting, special stainless steel. Applications are becoming more sophisticated and the increasing pressure of regulations and standards make achieving design, performance and financial goals ever tougher. Product Overview. Issues to be taken into account include: outlets. If Seller, in its sole discretion, determines that the effect of the Regulations is a material increase in the Seller's risk with respect to such transaction, Seller may, without cost,. With design support and Civil 3D BIM files as well as SuDS solutions, ACO assists the infrastructure industry in making, mapping and. The ACO Drain product line is segmented into different product types – dependent on use. In Food & Beverage productions, commercial kitchens or any enterprise, investing in quality floor drainage pays off in a long run. 1,5 mm. Soakaways can be an ideal drainage solution to deal with rainfall that doesn't naturally drain from your property. With its integrated approach, ACO stands for professional drainage, economical cleaning, and the controlled release and reuse of water. ACO offers: - Competitive pay. 28 April 2015 by ACO Water Management. Outlet diameters 110, 125 and 142 mm. Building Drainage. 30 minutes divided by 150 milimetres = 12,000 s/m. Suitable for both syphonic, vacuum and gravity drainage solutions. This ACO BrickSlot HexDrain is a slot drain channel drainage system that seamlessly clips together and requires no additional fixings, with a 500mm mark for an easy-cutting guide. 6 Drives, paths and landscaping. ACO Building Drainage. ACO By The Numbers. ACO Drain is the market leading modular trench drain system manufactured at the company’s modern facilities in Arizona and Ohio. Rules for drainage mainly ensure there is no risk for cross contamination and to ensure the systems can cope with the wastage and volumes of water they will be holding. The ACO Group is one of the world market leaders in drainage technology. There aren’t any specific regulations controlling soakaways, and there’s no rule that says you must have one. Any patio that. 014 litres/second/m² for normal situations. Order information. ACO can provide accurate channel recommendations with its proprietary software. ACO Building Drainage is well equipped to ensure your drainage needs are met whether it’s a bespoke product or an off the shelf product. Stainless steel; Material grade 1. An advanced roof and balcony rainwater drainage system. Welcome to ACO Building Drainage. This is to ensure that when excavating there’s no damage to the cables as they’re housed in ducting. The principles for drainage given in Chapter 7. The system intercepts water from surface run-off. Heelsafe® Anti-Slip Grates. The standard assembly of ACO DrainMat. 2. ae, Web: ACO Systems FZE - Legal informationDuring the development of these standards, the Approved Documents to the Building Regulations were also developed. AND SAFETY REGULATIONS. ACO India. The company has further locations in Phoenix, AZ, and Fort Mill, SC. Al Semsam Building Materials, a leader in the supply of various internal and external drainage systems, continues to help tackle some of the challenges presented by the complex site and structural. - via a saddle onto an existing sewer. O. It combines line drainage with point drainage by using an open-sided drainage channel to collect and convey rainwater to drainage points with a raised or suspended deck structure. All ACO’s channel systems are design to integrate with other systems that address these. Fill trench with concrete and level off with clearance for the channel. Stainless steel ACO pipe system is designed for gray and black water, rainwater and industrial waste water drainage applications. im new here and inexperienced in building matters. 12780 (c. - via an existing manhole or existing. As the UK has its fair share of rain, there are many problems that could lead. ACO India. 00 incl VAT. ACO ShowerDrain - Bathroom Drainage Building Drainage. List of amendments. Available in 1. High-performing stainless steel drainage products are an essential part of all waste water management solutions. Declaration by a qualified person for structural works for the approval of structural plan (retaining wall) – Form BCA-BE-STAPPV01-RW and BCA-BE. This is the reason why our range offers two different designs: Moreover the planning and design concept. ACO. 4404 (316L) grades of stainless steel. Lockdown has seen an increase in delivery services. Double lip seal push-fit connection for easy and reliable installation. ACO Building Drainage ACO building drainage ACO Building Drainage is a. Website Search. ACO line drainage with one layer of concrete 06 ACO line drainage with two layers of concrete and waterproof insulation. ACO is a market leader when it comes to channel drainage, known for their durable and reliable designs, with over 50 years experience in the industry. ACO Drain systems consist of factory manufactured modular channel units made from corrosion resistant Polycrete channels, together with grates from a variety of materials for all loading applications. ACO Building Drainage is a new concept within the ACO Group. ACO Building Drainage cast iron Car park Gullies are designed specifically for trafficked car park applications with direct vehicle access providing a robust, compact and durable drainage solution. regulations and standards make achieving design, development of corrosion. The owner is responsible for checking their property has the right drain connections. ACO Drain Laid Against Wall But Above Damp Proof Course. Worldwide, ACO is characterised by a high level of decentralised ownership, and explicit regional market proximity. This is to ensure swift and appropriate action can be taken when necessary for any type of drainage system, whether it concerns a 75 mm pipe or a trunk sewer that is over 1 metre wide. 15 metre up to 6 metres for optimum practicality and ease of. 4301 (304) or 1. ACO provides a comprehensive range of highways-specific drainage solutions that support essential road drainage infrastructure in highways, trunk roads, urban roads, footpaths and highways conservation. ACO understands the importance of products that are corrosion resistant, do. - via a new branch junction or access chamber to an existing pipeline. Most are variations on the theme of an enclosed channel, typically with a u-shaped cross-section and some form of grating over the top. Steel thickness min. The high quality channels clip together for quick and easy installation. ACO ShowerDrain solutions are designed to inspire creative bathroom planning. ACO Drain consists of cast polymer concrete bodies with either galvanized steel, stainless steel or cast iron wearing edges. 7. Building Thresholds House & Garden Building Thresholds Building Thresholds STYLISH RANGE OF ACO THRESHOLD SOLUTIONS ACO threshold drainage prevents water ponding at building entrances, whilst also providing attractive and functional detail to the architecture of the home. Drainage fields or mounds must: Be at least 10m away from drains and watercourses. To clarify, 150 (mm) x 12 = 1800, then divide by 60 (mins) = 12 s/m. Angle α. Box 18672, Dubai, United Arab Emirates Telephone: +971 4 880 69 98, Fax: +971 4 880 69 97please visit the ACO building drainage online catalogue for more information DN 315 DN 250 DN 200 DN 160 DN 125 DN 110 DN 75 DN 50 DN 40 Introduction to ACO pipe Together with the other products of ACO building drainage it creates a perfect system and offers a sustainable drainage solution with unique advantages to the customers. ae. ACO drainage is manufactured from austenitic stainless steel, grades 1. Kitchen Waste pick-up. 13054 (c. ACO Environment. 415821. Our technical sales team are also on hand to assist with your enquiries; phone 01254 52244 or email team@ebpbuilding. 63 19005 Threshold Drain - black aluminium grating 1000 61 100 93 1. For the purposes of this chapter, the following definitions apply: Provision to access a sewer or drain for maintenance or inspection and includes any manhole, inspection chamber or rodding eye. ACO provides a comprehensive range of highways-specific drainage solutions that support essential road drainage infrastructure in highways, trunk roads, urban roads, footpaths and highways conservation. Complete this test at least 3 times with two trial holes. It features squared ends to improve handling and safety. ACO Building elements Ltd. ACO manufactures and supplies a wide range of external drainage products that; Collect stormwater from external hardstand surfaces, for example pavements and slabs. 01 175 203 18. ACO commercial drainage. Drainage channels for vehicular and pedestrian areas. 4301 (304) Downloads. The current edition covers details of foul water drainage, both above and below ground, pipe sizes, protection of pipes, manholes and inspection chambers. A correctly specified drainage system stops rainwater transgressing into a building or into other sensitive areas. Tyttenhanger Farm, Coursers Road, Colney Heath, Herts, AL4 0PG. 37 11.