Maintenance: A PlastiDrain system when correctly designed and installed should not. D/S equal inspection chamber base. Product Type - PPIC Inspection Chamber. Calefa; Comfia. HepvO self-sealing valve. list of suppliers of inspection chambers and types of inspection chambers, elite precast concrete limited, wavin, osma, alumasc water management solutions, naylor drainage products ltd, pam building, naylor concrete products ltd, saint gobain pam uk, hepworth clay & terracotta, clark drain ltd, marshalls cpm, pipeline & drainage systems ltd, marley. Hepworth Clay drainage system comprises a range of perforated and non-perforated vitrified clay pipes supplied complete with factory-fitted push-fit flexible couplings or plain ended with. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Inspection Chamber In the case of the Shallow Inspection Chamber, remove profile plug(s) for the side outlets required Use standard jointing sequence to connect 110mm OsmaDrain pipes to inlets/outlet NOTE: The main through channel MUST be used. Universal Access Systems range fit SuperSleve drainage systems and with our adaptors, inlets/outlets can be easily converted for use with plastic drainage systems. Osma 250mm Shallow Inspection Chamber Round Cover and Frame 4D325. The new. A complete 450mm Inspection Chamber Assembly offers a watertight, push-fit system that includes a 450mm diameter chamber base, 300mm. 200 mm. Range Hepworth Clay inspection chambers are supplied complete with multi inlets to connect directly to SuperSleve pipe systems, any or all inlets can be easily adapted to plastic drainage systems with the adaptor provided. Wavin 600 D/S equal inspection chamber base 225mm 69NE300 Wavin 600 D/S equal inspection chamber base 300mm. Inspection Chambers & Bases are normally situated at one of three points in a drainage system. Add to basket. The state of the art plastic inspection chamber, used as an alternative to a traditional concrete system and can lead to extensive savings in installation time and costs. To ensure high performance of sewerage systems, they must be inspected and maintained. 2m. Wavin 600 D/S equal inspection chamber base 225mm 69NE300 Wavin 600 D/S equal inspection chamber base 300mm. Verified by manufacturer 15 days ago. Sign in. £72. £38. 2m. Hot and Cold solutions; Above ground commercial. Hepworth Clay inspection chamber mixed base 150/160mm 315mm deep. The Hepworth SuperSleve clay drainage system is available in 100mm, 150mm, 225mm and 300mm diameters for use in adoptable sewers, commercial or industrial construction, highways and general building drainage. In a manhole chamber, the lowest point of channel in the floor of the chamber which carries the flow of sewage through the manhole. If the hole is square or rectangular you will need to take both the width and height measurements (as opposed to just the width of a circular one). 9) formed in the chamber's wall and for discharging the sewage into a main channel on the chamber's floor having an inlet and. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. The cover itself is square and larger. Meaning of Hepworth. Hepworth Clay Universal Access Systems - Access chamber. Building Regulations Part H (Maximum invert depth of 1. Range Hepworth Clay inspection chambers are supplied complete with multi inlets to connect directly to SuperSleve pipe systems, any or all inlets can be easily adapted to plastic drainage systems with the adaptor provided. Download a sample report. Silver 3. Inspection Chamber In the case of the Shallow Inspection Chamber, remove profile plug(s) for the side outlets required Use standard jointing sequence to connect 110mm OsmaDrain pipes to inlets/outlet NOTE: The main through channel MUST be used. Turtle Enviro Accesso 600mm Single Piece Adoptable Inspection Chamber for 150mm Twinwall - 1500mm Depth. 9 metres cover). Screwfix customers rate this product 4. 01 ex. Add to basket. Wavin has released its Range 200 inspection chambers and Range 315 inspection chambers, together with product selection tools, to help developers and builders meet the new standards, and gain the necessary approvals with the minimum of fuss. Hepworth Clay Product Design and Installation Guide . Inc. Park, Harry Weston Road, Coventry, CV3 2TT. Calefa; Comfia. Hot and Cold solutions; Above ground commercial. Add to basket. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Screwfix customers rate this product 4. Invert: 225mm. Inspection chambers should be used where the pipe. Different bases are available to purchase with all different amounts of inlets. Building Regulations Part H (Maximum invert depth of 1. Product name. Brett Martin Drain Inspection Chamber Riser Shallow Access 185mm Invert - 280mm. This Inspection Record lists the compliance verification. A unique selection of our chamber bases (D900/D800/D801/D802) incorporate flexible inlets, which allow 10° movement in any. £25. £32. 150mm. Mini Access Chamber Riser/SL. Widest UK range of BS approved polypropylene. Download the brochure. 2. Take a look at our other Hepworth Clay inspection chambers product ranges Inspection Chambers 15 variations Shafts 5 variations Bolt 2 variations Accessories 5 variations All Hepworth Clay inspection chambers products Solutions. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Detecting leaks with a loud whistle. From 22 reviews. Depth 940mm, five 100/110mm inlets 110/100 SPIC1/1 Depth 595mm, five 100/110mm inlets 110/100 SPIC2/1 Use up to 1. View trade pricing and product data for Hepworth - Clay, SPIC1/2 Chamber, Inspection 150/160mm PPIC 3 Inlets, & 2 Inlet Stoppers, Universals Clay or Plastics, Universal Access Systems. Hot and Cold solutions; Above ground commercial; Below ground drainage. 9. 2m. Approved and kitemarked to. This chamber features a. There are two types of eye examinations, basic and comprehensive. 2m. SPKS8 A15 square ductile iron cover and frame. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Deep inspection chambers. FloPlast Push-Fit 3-Inlet Adjustable Mini Access Chamber Base 300mm. . We offer an extensive range of Silt Traps and Catchpits for surface & storm water drainage. Chamber risers, cover and frame sold separately. Our trade standard chambers & lids are great for maintenance purposes to test, clear & prevent blockages. 90. Drainage - Hepworth Clay. See section 2. Range Hepworth Clay inspection chambers are supplied complete with multi inlets to connect directly to SuperSleve pipe systems, any or all inlets can be easily adapted to plastic drainage systems with the adaptor provided. Many of our customers in the Scottish Isles choose to have their order redirected to a local haulier such as Woody's Express or Hebrides Haulage in Inverness. In addition, it trades through operating companies in Oman. 50 incl VAT. 36NE302 right entry branch 160 mm. Bends, junctions and fittings are available in 100mm, 150mm, 225mm and 300mm diameters. It is used by plumbers and installers all over Europe for its high-quality performance and reliability. SUPPORT FINISH POLYPROPYLENE INSPECTION CHAMBER COMPLETE ’HEPWORTH’ CODE SPIC1/1 940 DEEP - 5x100 INLETS ’HEPWORTH’ CODE SPIC2/1 595 DEEP - 5x100 INLETS ’HEPWORTH’ CODE. As a market leading contributor to the built environment, our sights are firmly set on leading our industry in sustainability by 2025. Inspection Chambers . 00 : Hepworth Supersleve Housedrain P Trap Square Gully 100mm: Nr £ 90. Drainage. The overall depth of the chamber from the invert. 63 £61. To ensure high performance of sewerage systems, they must be inspected and maintained. BP440 Chamber Base 450mm / 110- Supplied with four easy fit bungs to block off unused outlets. Our range is available in a variety of materials including iron, plastic & steel. As a family business based in Peterborough, we innovate, design and manufacture the vast majority of our access and drainage solutions right here in Britain, and we are proud that we can now display the Made in Britain mark on these products. Conversion adaptors supplied. 2m. Our 450mm chamber can be used to an invert depth of 1200mm when used with a standard 450mm cover, or 3m when used with a restricted access cover. vat. excavation size to allow installation of inspection chambers and manholes. NBS Source. Introduction: All newly-laid drainage, including manholes, inspection chambers and the like, should be tested for water-tightness prior to backfilling, as detailed in the relevant British Standards ( BS EN 752:2008 Drain and sewer systems outside buildings) . Plumbing Systems. Buy online! Inserting an Inspection Chamber. Brett Martin Inspection Chamber Riser 450mm diameter - 325mm Invert. CAD - 4D960 - Shallow Inspection Chamber - Standard Detail - Three Connections To Shallow Inspection Chamber Download DWG CAD FILE ASSET_TYPE_CAD_DRAWING_WEBSITE CAD - 6D928 UIC 4D920. It should be performed on patients with. Soil pipes. com. Wavin offers a comprehensive portfolio of Inspection Chambers in 200, 315, 450 and 600mm shaft diameters. Find inspection chambers & manhole covers for easy access, gully traps and various sized bends and couplers to meet your requirements. 2021-01-06 23:00:00. Hepworth SuperSleve offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. inspection chamber inspection chamber Prior art date 1982-05-21 Legal status (The legal status is an assumption and is not a legal conclusion. Inspection Chambers . 15mm x 15mm ELBOW BEND COMPRESSION JOINT FITTING - PACK OF 1 PLUMBING. 4 Material. Hepworth Clay Hepworth Terracotta Our Solutions Potable Water Rainwater & Stormwater Waste Water Foul. 2m. Wavin’s deep Inspection Chambers are approved to BS EN 13598-2 for deep applications. Integral accessories : None. uk:. Wavin offers a wide range of deep and shallow Inspection Chambers for safe and easy. 00 incl VAT. Product Height. base straight channel and single inlet Polypropylene inspection chambers (PPIC) are lightweight and robust, providing a cost-effective, faster and safer installation when compared to brick or concrete chambers. The straight through channel is 150/160mm, with two 150/160mm branches at 90º and two 100/110 branches at 45º. 600mm diameter polypropylene inspection chamber for adoptable and non-adoptable applications. 0 times the diameter of the larger pipe connecting into it. Chamber of Commerce in Victoria, BC. 00. It is used in drains where flexibility. 13. Hepworth Clay inspection chamber raising piece 475mm depth 175mm Catalog code: SPIC4 Product specifications Identification specifications -Catalog code Wavin SPIC4 EAN Number 5027888002938 SAP number 000000000003031974 General specifications. £143. (On private drains or sewers only, adoptable sewers to have min 0. Size. 3) Optional sealing ring for restricted access cap**All chambers over 1200mm invert are supplied. Suitable for Gravity Drainage & Sewerage. Verified by manufacturer 1 month ago . Range Hepworth Clay inspection chambers are supplied complete with multi inlets to connect directly to SuperSleve pipe systems, any or all inlets can be easily adapted to plastic drainage systems with the adaptor provided. item 1 110mm Osma Wavin Inspection Chamber Kit Manhole Plastic - Cover, Riser,. 2. Inspection Chamber . To connect multiple pipes runs into a single drainage system at a known point. First question, Why are there so many of these all on my property? (Am one of 60 houses on the estate which has 2 build. A blue green approach to circular water management offers an effective way to make our built environments more climate resilient: Flood prevention – By increasing our storm water capacity and manage the peaks and lows more intelligently. Wavin offers a wide range of deep and shallow Inspection Chambers for safe and easy. Forest Road, Walthamstow. Showing 1—4 items of 4. 2m. The distinctive terracotta colour provides easy. Welcome to Wavin Tech Tools. Quickly find the most suitable inspection chamber for your project using our. 2. This enables sustainable. Hepworth Clay Inspection Chambers . End to end, everything is taken care of by Wavin - installation with a five-year. 9 metres cover). However, your inspection chamber won’t always sit at the level required. 2m. 12 No inspection chambers shall be constructed inside roofed buildings except in shafts, service rooms, car sheds and adequately ventilated corridors. 50 incl VAT. For further details see Pipes Passing through Structures: Technical Note 3 page 106. They are suitable for use to a maximum depth of 3m. Assessment – test your knowledge. 1 and annex B gives details of granular material suitability), to achieve a common line and level with the main pipeline. these are complete with a 1m invert shaft. Tested and awarded the Kitemark. See BBB rating, reviews, complaints, request a quote & more. TwinWall surface aquarium drainage tubes. Hepworth Clay drainage pipes; Hepworth Clay channels & fittings; Inspection Chambers. Brett Martin Drain Inspection Chamber Manhole Cover and Frame 50kN for Driveway - 450mm Round. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed. 9. ) Discovered later that the previous owners (who were very keen gardeners and flower club members) had covered over the lids with a layer of gravel and then a covering of small. Contact Us Addresses, hours and contact information for Bureau Veritas environmental and industrial hygiene laboratories. 35 ex. Ex VAT Inc VAT. The Polylok 150mm/300mm riser is designed for use with the Polylok 500mm covers, adapters and the 7 hole inspection/distribution chamber. A base accepts pipes, either 110mm or 160mm in diameter, thanks to a varying number of inlets. View trade pricing and product data for Hepworth - Clay, 44NE310 Base, Chamber Straight Equal, Inspection Chamber, Range 450. Wavin Sentio Controls. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Deep inspection chambers. It will be mandatory for any construction product covered by a harmonisedShallow inspection chambers Deep inspection chambers Hepworth Clay inspection chambers Solutions. £52. Hepworth Clay inspection chambers are manufactured under a Quality Management system to BS EN ISO 9001. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Wavin Hep2O push-fit; Tigris K1 press-fit; Underfloor Heating. 2m. Wavin’s deep Inspection Chambers are approved to BS EN 13598-2 for deep applications. To ensure high performance of sewerage systems, they must be inspected and maintained. NBS Source. 3. £52. Hepworth Supersleve Inspection Chamber 940mm Deep With 100mm Outlets: Nr £ 591. Enter postcode for local availability. Range Hepworth Clay inspection chambers are supplied complete with multi inlets to connect directly to SuperSleve pipe systems, any or all inlets can be easily adapted to plastic drainage systems with the adaptor provided. Mixed Base PPIC Polypropylene. As part of Brett Martin's Shallow Access Inspection Chamber Assembly, this Double-Seal Lid is specially designed for pedestrian use. To ensure high performance of sewerage systems, they must be inspected and maintained. Inspection Chambers. 160mm Inspection Chamber Blanking Plug (spare). co. £66. Hepworth Clay EPD for SDC5 . Product Description. 4. Inspection Chambers. Take a look at our other Hepworth Clay inspection chambers product ranges Accessories 5 variations Shafts 5 variations Inspection Chambers 15 variations Bolt 2 variations All Hepworth Clay inspection chambers products Solutions. 11 An inspection chamber shall be fitted at each point where the direction of drainage pipes changes or at which the degree of slope changes or at junction of a branch and main line. Wavin Ltd Variant: 44NE310 - DN 100. 2m. Hot and Cold solutions; Above ground commercial. enquiry@wavin. 2m. Polypropylene Manhole Cover and Frame Square - 580mm. These covers have a range of different applications, such as outdoor drain covers, fire hydrant surface boxes and stop tap access boxes. £179. Hepworth Clay from Wavin is the No. BIM by Wavin puts a new level of productivity at your fingertips, enabling everyone in the construction chain to access the full time and cost savings of the BIM way of working. Deep inspection chambers. This chapter will provide you with information on how to install Hepworth inspection chambers including pipe cutting, jointing, delivery, storage, handling and pipe pack dismantling. 2m) 450mm PPIC manhole chambers are installed to create a change-of-direct and/or rodding access and inspection points for 110mm & 160mm uPVC drainage systems. 2m Deep : Mixed Base PPIC Polypropylene Inspection Chamber 150/160 straight through main channel with 2x150/160 branches at 90º &. Wavin offers a range of A15 plastic cover and frame solutions for the Range 200, 315 and 450 Inspection Chambers. Wavin Ltd Variant:. Multiple entry/single exit chambers are larger and dependent upon structural restrictions and flow limitations. tel: 01226 763561 fax: 01226 764827: drainage@hepworth. Polypipe Inspection Chambers, Covers and Frames are made from Polypropylene, Concrete, Aluminium or Ductile Iron and are black unless otherwise stated. Cutting shaft – Shallow Inspection ChamberOrder an Inspection Chamber Riser 320/470mm for Drainage and Sewer Systems. Size: 475x595mm, Finish: Polypropylene, TSI Code: 9784291, EAN Code: 5027888015648. BIM revit packages; Technical tools;Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. - Injection moulded in strong polypropylene. com. Take a look at our other Hepworth Clay inspection chambers product ranges Synthetic pit floor 12 variations Shafts 5 variations Inspection Chambers 15 variations Bolt 2 variations All Hepworth Clay inspection chambers products Solutions. Build your 600mm dia Twin Wall Adoptable Surface Water Inspection Chamber in 3 easy steps. BP440 Chamber Base 450mm / 110- Supplied with four easy fit bungs to block off unused outlets. Part Photo: Drawing 1: Nominal Size: 450. Polypropylene. Choice of twelve bases for equal pipe connections. Hepworth Clay inspection chamber sealing ring for raising piece. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Technical data: Brand - Hepworth. £22. 2m. Bends up to 45° may be used on any inlet or outlet. Brett Martin Drain Inspection Chamber Riser Shallow Access 185mm Invert - 280mm. 0. Material : Polypropylene (PP). For use with 150mm, 225mm and 300mm Hepworth Clay pipework via the appropriate adaptor. Hepworth Clay inspection chambers are manufactured under a Quality Management system to BS EN ISO 9001. net dictionary. Take a look at our other Hepworth Clay inspection chambers product ranges Fitting with 2 connections 9 variations Shafts 5 variations Inspection Chambers 15 variations Bolt 2 variations All Hepworth Clay inspection chambers products Solutions. You Can See The Manhole Chamber Situation Quickly Right On Your Own Network. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Accesso 600mm Sealing Ring. Within an area of decorative, coloured or natural stone paving, Recess Tray Covers,, sometimes referred to as "Inset covers", are invaluable, especially compared against the utilitarian covers commonly used in modern construction. 3 (2 reviews) Product Code: 800520. VAT. Wavin offers a wide range of deep and shallow Inspection Chambers for safe and easy. Wavin Ltd Variant: Standard inspection chambers. Wavin’s deep Inspection Chambers are approved to BS EN 13598-2 for deep applications. London. The difference between soil and waste pipes is that soil pipes carry water and solids into the sewer from your toilet, bidet or urinal. 57. Hepworth Clay inspection chambers Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Shallow inspection chambers; Deep inspection chambers; Hepworth Clay inspection chambers; Heating & Cooling. Please enter your delivery postcode. A stunning collection of 1, 2 & 3 bedroom apartments, available now from £399,999. Can be cut to size in 60mm increments with an additional 60mm at the top. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. g. Hepworth Baptist Church is a member of the Fellowship of Evangelical Baptist Churches in Canada. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. They are suitable for use to a maximum depth of 3m. Total depth can be up to 1. 1. The system is. Take the hassle out of selecting the right Inspection Chamber for your next project. VAT Registered: GB 394 1212 63. Detecting leaks with a loud whistle. 30 pm Monday to Friday’s. Wavin offers a wide range of deep and shallow Inspection Chambers for safe and easy. 2. SPIC2/1 inspection chamber 475 mm, depth 595 mm. View options. The system is manufactured in PVCu to provide strength, durability and ease of installation, while our innovative seal and snap-cap system allows push fit joints. 1 Terms and definitions. Loading Classification for Covers and Frames: A15 = Equivalent to Class A15 load category of BS EN 124-1 2015 and BS ISO 15398 2012 (Areas which can only be used by pedestrians and pedal cyclists. 92 £53. Wavin offers a wide range of deep and shallow Inspection Chambers for safe and easy. Chapter 2 gives an overview of Hepworth Inspection chambers and guidance on how to select the most appropriate chamber for different applications including the implications of building regulations. Deep inspection chambers. 63. They are suitable for use to a maximum depth of 3m. Manhole covers, also known as inspection chamber covers, are a common sight in the ground; they prevent entry to drainage inspection chambers and provide access to below ground sewerage and surface water systems. Osma 250mm Shallow Inspection Chamber Square Cover and Adjustable Frame 4D961. Soil pipes, also known as soil vent pipes, are used to transport wastewater and sewage into the sewer. 2m. £9. Range. Geo Membrane Data Sheet. SPKS8 A15 square ductile iron cover and frame. They hold the kitemark license KM585205 and/or KM583718. Inspection chambers allow for inspection, cleaning and maintenance of a drainage system, and are placed where a change of direction or gradient occurs. Register and take a range of CPD presentations on Wavin's plumbing, drainage and water management products. Take a look at our other Hepworth Clay inspection chambers product ranges Inspection Chambers 15 variations Shafts 5 variations Bolt 2 variations Accessories 5 variations All Hepworth Clay inspection chambers products Solutions. Wavin Hep2O pipes & flooring systems; Wavin Hep2O manifolds & controls; Ventilation. £ 11. View trade pricing and product data for Hepworth - Clay, SPIC4 Raising Piece, for Inspection Chamber, Universals Clay or Plastics, Universal Access Systems. Clay is a future-proof material, 100% natural and 100% recyclable. jpn. Hepworth Clay inspection chambers are manufactured under a Quality Management system to BS EN ISO 9001. Supplied with stoppers in inlets (4 only). 2m. Geo Textile Data Sheet. Hepworth Clay drainage pipes; Hepworth Clay channels & fittings; Inspection Chambers. Bends up to 45° may be used on any inlet or outlet. Side risers are used to increase the height of the inspection. 2m. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. 2m. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Polypropylene Construction; Push-Fit Connection; Ring Seal Joints 1443052 Inspection chamber HEPWORTH IRON CO Ltd 12 Dec 1973 [4 Jan 1973] 595/73 Heading E1C An inspection chamber includes a secondary channel 6 or 7 extending at least a part of the way around the periphery of the chamber's floor for receiving sewage from inlets (e. Drainage Services. 99. Please select a major product category: Inspection Chamber. Non-man-entry inspection chambers. Call the company. Ex VAT Inc VAT. Drainage Channels Drainage channels work by removing surface water away from a given area. Form new 450mmØ NIC Hepworth Inspection Chambers with 150mm UltraRib Back Drop or similar approved, final position to be confirmed subject to full drainage survey. The base of the chamber connects underground piping and has a varying number of. Size: 150mm, Finish: Polypropylene, TSI. Call Us. Hepworth Clay offers a range of multi inlet access and inspection chambers for private drainage applications up to a maximum depth of 1. Hepworth Clay channels & fittings; Inspection Chambers. Definition of Hepworth in the Definitions. In response to new legislation requiring the adoption of all new foul water sewers. Polypropylene Inspection Chamber 475mm diameter. SPIC2/1 inspection chamber 475 mm, depth 595 mm. For smooth maintenance, we recommend applying copper-impregnated grease to the lid retaining screws during installation, ensuring effortless removal when needed. Raising pieces are used to deal with deeper drains, up to a maximum of 1 metre; anything deeper than 1000mm requires a brick-built or concrete section manhole . 70 mm 1. 2m. Access Fittings & Puddle Flanges - PVCu. -. Delivery. To ensure high performance of sewerage systems, they must be inspected and maintained. Integral accessories : None. £300. Polypipe inspection chambers to BBA approvals or BS 7158 in 320mm and 460mm diameters can continue to be used in these applications, for both shallow access and. 34NE303 two entry branches 110 mm. 45°and 90° Left-hand Branches 110mm 4D933. Integral accessories : None. Loading Classification for Covers and Frames: A = Equivalent to Class A15 load category of BS EN 124-1 2015 A+= Tested to. 2m. £100. 2m. Presumably the answer is "A metal detector", but then the next question is: What sort of metal detector could reliably pick out the metal drain access chamber cover witho. 08 ex.