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Surface water and stormwater management
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Surface water and stormwater management for highways, public realm, commercial and residential sites. Linear drainage channels, kerb and slot drains, gullies and catchpits. Geocellular attenuation and infiltration units, storage tanks, flow controls and chambers. Oil, silt and vortex separators, headwalls and outfalls. SuDS systems for conveyance, storage, treatment and controlled discharge.
Surface water and stormwater management - helping you find the best solution for your project.

ACO Multiline Sealin - polymer concrete surface water channel drain
ACO Multiline Sealin is a high strength channel drainage system made from polymer concrete with an integrated seal for surface water management in commercial, residential, and landscaping projects. Designed for quick installation, it includes steel edge rails for channel protection and is suitable for pedestrian areas and parking for all vehicle
ACO HexDrain® Brickslot - drainage channel
ACO HexDrain® Brickslot is a high-quality, high-strength domestic slot drainage channel. It provides a discreet system for domestic block paving installations and threshold drainage. Manufactured from 100% recycled polypropylene, the highly successful 1m ACO HexDrain® channel has been combined with an off-set slot cover specifically designed for
RECYFIX PRO - Corrosion-free commercial, public channel drainage
RECYFIX PRO corrosion-free channel drainage systems are suitable for commercial and public areas. Manufactured from sustainable and fibre-reinforced polypropylene (PP) for extra strength and stability, the channels have excellent durability and resistance to environmental influences. With a range of grating options, the systems are rated up to D 400
URBANTEC - channel drainage for light traffic
URBANTEC domestic channel drainage system with Heelsafe grating or slotted cover, made from composite or galvanised steel. Grating clips into an angle housing for a secure finish. Eight vertical outlets along the channel allow flexible connection. In-built connections enable corners and t-junctions. Slotted composite cover has an asymmetrical slot
Silt Stop 100 LP - sediment control fence with hardwood stakes for sites
Silt Stop 100 LP is a temporary sediment control fence made from UV-resistant material, designed to reduce soil runoff from construction sites and protect water quality in nearby streams, rivers, lakes, and seas. Supplied in rolls with pre-installed hardwood stakes for quick installation, it resists rotting, biological degradation, and damage from- PRODUCT
Greenfix Soil Stabilisation & Erosion Control
SFA (Sewers for Adoption) - precast concrete headwalls
Althon Sewers for Adoption (SFA) precast concrete headwalls are suitable for connecting pipework to open watercourses, and designed for compliance with Sewerage Sector Guidance and Section 104 Agreements. The range supports single or multiple pipe openings, pipe sizes up to 1500mm, and various backwall heights and toe depths, with options for
ACO StepDrain threshold drainage
ACO StepDrain Slimline is a channel drainage system made from galvanised and 304 stainless steel, designed to prevent water pooling at house entrances. Supplied with a removable HeelGuard grating, it suits pedestrian traffic and is suitable for use with up to 100mm block paving. Two channel lengths accommodate most door sizes: level threshold
ACO RainDrain B 125 - polymer concrete light duty drainage channel
ACO RainDrain B 125 polymer concrete light duty channel drainage system with cast iron grating. Manufactured from ACO’s high strength recycled polymer concrete, the 1m channel unit comes complete with a cast iron grating suitable for pedestrian areas, domestic drives and small private car parks (Load Class B 125). ACO RainDrain B 125 has a full
RSFA11 precast concrete rectangular headwall
RSFA11 are Sewers for Adoption compliant precast concrete headwalls for outfalls discharging into ponds, swales, ditches beaches and rivers. RSFA precast headwalls come with the option of two thicknesses of toe, 300mm and 500mm, each of which is available in three depths. RSFA 11 precast concrete headwalls are available with both sloped and
R18A Rectangular Headwall Range - precast single piece concrete headwalls
R18A rectangular, single-piece concrete headwalls have a separate toe extensions and can accommodate twin-wall, uPVC or clay pipes up to 600mm, or concrete pipes up to 525mm. Available with 1080mm back wall heights; 3 depths of toe in 300 and 500mm thickness; fixed to the headwall using threaded rod, nuts and washers, and high-strength, non-shrink
H6C headwall range, 1100-2050mm backwall height
A one-piece reinforced concrete headwall to suit plastic or clayware pipes up to 500mm or PCC pipes up to 450mm. Available with three standard backwall heights, 1.1m, 1.5m and 2m; lifting points cast in to each wingwall for safe handling using Althon lifting clutches; stainless steel sockets provided for the attachment of gratings and
Galvanised steel orifice plates - curved
Curved orifice plates in galvanised steel to restrict and regulate the flow of water: 100mm Galvanised Steel Curved Orifice Plate; 110mm Galvanised Steel Curved Orifice Plate; 150mm Galvanised Steel Curved Orifice Plate; 225mm Galvanised Steel Curved Orifice Plate; 250mm Galvanised Steel Curved Orifice Plate; 300mm Galvanised Steel Curved Orifice
SDS SYMBiotIC™ - remote stormwater device management
SDS SYMBiotIC™ enables the remote and autonomous control of any number of stormwater management devices, ensuring they continuously perform at their optimum operational efficiency. SDS SYMBiotIC™ provides real-time access via a web portal to a comprehensive range of operating data. Customer bespoke data extractions and reporting information feeds
HD4000 polymer drainage channel
HD4000 is a 400mm polymer concrete drainage channel has a nominal width of 400mm for load class applications up to F900. The HD4000 has an integral cast iron edge rail for strength under extreme dynamic loading. The lightweight construction of polymer concrete reduces installation time and manpower required on site: channel sections for a linear
AquaCell Plus-R modular stormwater attenuation unit
AquaCell Plus-R is a modular stormwater attenuation unit designed primarily for use in applications where inspectability is required. It is suitable for use in all applications from landscaped areas to heavily trafficked areas
SDS Weholite Manholes
Weholite manholes are flagship products that truly represent the very best of offsite build. The factory-built environment of offsite build and modular technology ensures that the inherent and residual risks, in terms of cost, efficiency, health & safety and environmental aspects, borne of the complexity of traditional construction processes, are
Rectangular Sewers for Adoption (RSFA) Headwalls
Althon manufacture rectangular Sewers for Adoption (RSFA) precast concrete headwalls, for outfalls discharging into ponds, swales, ditches, beaches, and rivers. Compliant with Sewers for Adoption standards and Severn Trent Water STD6002 for pipework up to 600mm. Options for toe thickness, wall profile to suit bank gradients, and can be supplied
HD3070 polymer drainage channel
HD3070 is a 300mm polymer concrete drainage channel has a nominal width of 300mm for load class applications up to F900. The HD3070 has an integral cast iron edge rail for strength under extreme dynamic loading. The lightweight construction of polymer concrete reduces installation time and manpower required on site: channel sections for a linear
450 Mitred Headwall - precast concrete drainage inlet for 450mm pipes
Althon 450 Mitred Headwall is a fibre reinforced precast concrete open inlet for surface water runoff, designed for pipework up to 450mm internal diameter. Inlet profile matches a 1:3 (18°) slope for swales and ponds, with a galvanised steel straight bar grating as standard and optional inline non-return valve: fibre reinforced precast concrete
ACO CVLR TrackDrain - stainless steel drainage channel for very light rail
ACO CVLR TrackDrain is a stainless steel drainage channel designed for surface and under-rail water management on 41GPU Very Light Rail tracks. Made from 10mm stainless steel, it includes a central 110mm outlet pipe and does not require mechanical fasteners or rail drilling, supporting faster installation and easy maintenance
Rain Gardens - planted beds for urban rainwater management and wildlife
Meristem Design Rain Gardens are planted landscape features designed to capture and manage rainfall in urban areas, reducing surface water runoff and supporting biodiversity. Made to fit a range of spaces, they use carefully selected plants to filter pollutants and slow water flow, helping prevent flooding and erosion: planted landscape system for
ALT GRP Plus lightweight drainage channels
ALT GRP Plus is a lightweight, stable, high-tech channel drainage system. It has a very high resistance to breakage and load-bearing capabilities, suitable for a wide range of applications from domestic, to commercial, up to heavy industrial use. Available with a range of grating options, including slotted and mesh gratings in galvanised steel andSLOTTED channel drainage - landscape and public realm projects
With a slotted inlet of 10mm, the paverslot channel offers neat and discreet surface drainage for design-sensitive applications. The system harmoniously blends into the surface appearance with only unobtrusive narrow lines visible. The channel body is manufactured from 100% recycled composite and fitted with a 105mm asymmetrical slot grating
StormTank™ - precast concrete attenuation system
StormTank™ is an underground precast concrete attenuation system made from wall panels, a concrete base and cover slab, assembled on-site. Designed for water management, it can be configured with pipe connections, openings and internal features such as weir-walls and baffles. Maximum height is 6m with a 2m overburden, it suits pedestrian and

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