Tanks, filters, pumps, and controls for building- and district-scale rainwater harvesting systems.

    Find a Rainwater Harvesting Equipment Provider

    Matched providers: 30

    Top countries: United Kingdom, Belgium

    Popular technologies: Filtration, Fixed Bed Activated Carbon Adsorbers

    Rainwater Harvesting Equipment: Filters, Tanks, Pumps, and Controls for Residential and Commercial Systems

    Rainwater harvesting equipment encompasses the full component chain from roof collection to point of use: guttering and downpipes, first-flush diverters, pre-tank filters, storage tanks, calmed inlets, submersible pumps with floating suction, controls and level sensors, mains top-up devices, and distribution pipework. Pre-tank (above-ground) filtration: self-cleaning vortex filters (Wisy WFF100 or WFF150, 280 or 380 micron stainless steel mesh, hydraulic capacity 1.2 to 4.2 L/s) or downpipe filters (3P Technik FP300) remove coarse debris before tank entry while using roof flow to self-clean, returning retained solids to drain. Calmed inlet: submerged floating inlet with 350 to 500 micron filter inside the tank separates incoming water from settled sediment; ensures settled particulate is not disturbed during filling. Floating suction: pump draws from mid-tank depth (not bottom sediment layer), maintaining water quality at the outlet. UK compliant systems require WRAS approval mark on all components in contact with water supply.

    Storage tanks for rainwater harvesting: above-ground (polyethylene, 100 to 10,000 L; UV-stabilised black or dark green to inhibit algae growth; WRAS-approved materials); below-ground (polyethylene: Graf Carat S/XL range, 3,750 to 10,000 L; concrete precast; GRP/fibreglass for large commercial volumes 20,000 to 500,000 L). Below-ground polyethylene tanks require traffic-loading specification (SLW 30 or SLW 60 per EN 1250) for installation under driveways or parking areas. GRP/fibreglass tanks (bespoke fabrication, BS 4994 design): suitable for large commercial and industrial volumes; multiple compartments; integral pump chambers. Concrete precast tanks (BS 5911): high durability, negative external groundwater pressure resistance, suitable for high-groundwater-table sites where polyethylene tanks require backfill restraint or anti-flotation anchoring. Tank inspection access: minimum 600 mm diameter manhole cover per BS EN 476.

    Control systems and pumps for RWH: submersible centrifugal pumps (Grundfos CM, SBA, or DAB DIVERTRON series; typical pressure 2.0 to 4.0 bar at 30 to 100 L/min for residential); pressure vessels (membrane expansion vessels, 8 to 24 L) maintain system pressure between pump cycles, reducing start frequency to extend pump life. Control units (Grundfos RainManager, Wisy Level Control, Graf GFRT): monitor tank level via ultrasonic or float sensor; switch to mains top-up via solenoid valve when tank falls below low-level setpoint; provide mains supply via Type AA airgap (required by WRAS and Water Supply (Water Fittings) Regulations 1999) ensuring no cross-connection between rainwater and potable supply. Telemetry and remote monitoring (smart RWH controllers with app-based alerts): log yield, demand, and top-up volumes; detect pump fault conditions. Commercial systems: booster sets (2 to 4 pump duty-standby manifolds, frequency-controlled) with central control panel, remote monitoring via BMS or GSM, and automatic chemical dosing for Legionella control in large storage volumes.

    Frequently Asked Questions

    What equipment is needed for a complete rainwater harvesting system?

    A complete residential RWH system comprises: (1) Pre-tank filter: self-cleaning vortex filter (e.g. Wisy WFF100) or downpipe filter on each collecting downpipe - removes debris, leaves, and coarse particles; (2) Storage tank: 2,500 to 5,000 L below-ground polyethylene tank (Graf Carat, Kingspan Klargester) or above-ground tank for smaller applications; (3) Calmed inlet: submerged floating inlet distributor with fine filter prevents disturbance of settled sediment; (4) Submersible pump: centrifugal submersible with floating suction filter (draws from mid-depth, not bottom sludge); (5) Pressure vessel: 8 to 24 L membrane vessel reduces pump starts; (6) Control unit: level controller with mains top-up solenoid; (7) Mains top-up device: WRAS-approved airgap (Type AA) float valve assembly with 300 mm air gap - prevents cross-contamination with potable supply (legal requirement under Water Fittings Regulations 1999); (8) Distribution pipework: colour-coded buff/beige per WRAS IGN 9-02-04, labelled 'RAINWATER - NOT DRINKING WATER'.

    What is a first-flush diverter and why is it needed?

    A first-flush diverter automatically diverts the initial portion of each rain event to drain before allowing roof runoff to enter the storage tank. The first 0.5 to 1.0 mm of rainfall (0.5 to 1.0 L per m2 of roof area) carries the highest load of atmospheric dust, bird droppings, lichen, algae, and moss particles that accumulate on the roof surface between rain events. Without first-flush diversion, this polluted initial runoff enters the tank, degrading water quality (elevated turbidity, E. coli, heavy metals). Device types: (1) Downpipe chamber type: diverts flow into a holding chamber; slow-drain hole in chamber base empties it within 12 to 24 hours ready for next rain event; (2) Ball-float diverter: as chamber fills, ball float rises and seals the chamber outlet, directing subsequent cleaner flow to tank; (3) Continuous bleed: 2 to 5 percent of flow permanently diverted to maintain self-cleaning. BS 8515:2009 requires first-flush diversion as standard; minimum 0.5 L per m2 per event.

    How are rainwater harvesting tanks installed underground?

    Below-ground polyethylene RWH tank installation: (1) Excavation: minimum 300 mm clearance each side of tank; base preparation - 150 to 200 mm compacted granular sub-base (10 mm gravel or crusher run); (2) Tank placement: crane or excavator; tanks up to 5,000 L can be hand-slid on polythene sheet; (3) Backfill: pea gravel (6 to 10 mm single size) to tank shoulder level - NEVER use compacted clay or crusher run against polyethylene tank walls (overstressing); pea gravel backfill requires no compaction and evenly distributes earth pressure; above shoulder: normal backfill with shallow compaction passes; (4) Traffic loading: specify SLW 30 (pedestrian, light vehicle) or SLW 60 (heavy vehicle) rated tank and extension shaft for driveway/parking installation; (5) High groundwater: if seasonal groundwater within 500 mm of tank base, anti-flotation anchor straps or concrete deadman anchors required (buoyancy of empty 7,000 L tank = 7 tonnes uplift); (6) Commissioning: chlorinate tank (10 mg/L, 30-minute contact time), flush, then fill with rainwater or mains water to test system.

    What certifications should rainwater harvesting equipment have?

    UK required certifications: (1) WRAS (Water Regulations Advisory Scheme) Approval: all components in contact with water intended for domestic use must be WRAS-approved (or demonstrate compliance with BS 6920 extraction tests for materials); the WRAS Product Approval Scheme lists individually tested products; (2) BS 8515:2009+A1:2013: the UK standard for design, installation, testing, and maintenance of RWH systems - compliance is required under the Water Supply (Water Fittings) Regulations 1999 where installed; (3) For commercial systems: BREEAM Water credit Wat 01 awards credits for RWH system design and performance; (4) CE marking (EN 12566 for tanks in some configurations; EN 858 for separator elements); (5) For below-ground tanks under traffic: EN 1250 structural assessment certificate for relevant load class; (6) NSF/ANSI 61: for US installations, components in contact with potable or potable-adjacent water should meet NSF 61 extraction requirements. German DIN 1989 Parts 1 to 4 is the equivalent comprehensive standard in Germany.

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    Rainwater Harvesting Equipment Companies

    Tanks, filters, pumps, and controls for building- and district-scale rainwater harvesting systems.

    30 providers

    This page is a good fit if you need:

    • Filtration or Fixed Bed Activated Carbon Adsorbers capabilities
    • Suppliers with contractors sector experience
    • Providers operating in United Kingdom or Belgium
    Providers
    30
    Verified
    3
    Countries
    8

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    How to choose a rainwater harvesting equipment provider

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    United Kingdom20
    Belgium2
    China2
    Germany2
    India1

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    Contractors7
    manufacturing5
    Manufacturing5
    Accreditations4
    agriculture4

    Technology

    Filtration5
    Fixed Bed Activated Carbon Adsorbers3
    Flat Sheet UF Membranes3
    Granular Activated Carbon (GAC) Filters3
    Hollow Fiber RO3

    Find a Rainwater Harvesting Equipment Provider

    Showing 1-20 of 30

    30 results from 30 matched providers

    Ecosystems International logo

    Ecosystems International

    Verified
    Indonesia51-200 employees
    Flat Sheet Microfiltration Units · Hollow Fiber MF Systems · Ceramic Microfiltration Modules +80 more
    apac · china · europe +3 more

    PT Ecosystems International (PT ESI) was established at Jakarta on 21st November 2006. We are an industrial effluent treatment systems integrator specializing in electrocoagulation (EC), a unique waste water treatment profile. PT ESI has capabilities in designing complete waste water treatment solutions by combining various effluent treatment systems such as the electro-coagulation, biological, chemical processes and membrane filtration, offering its customers a wide and comprehensive range of solutions, tailored to suit their various needs – ranging from basic effluent treatment for discharge to effluent recycling for water reuse. The Company is experienced in handling the design, engineering, procurement, construction and operation of new Effluent Treatment Plants (“ETP”) and possesses expertise in retrofitting existing ETP to increase the flow rate and treatment capability without any major infrastructure increase PT ESI is also a premier waste water treatment service company specializing in handling waste water generated from Exploration (Drilling) and Produced Water. Customers in Indonesia include major Oil & Gas companies such as Pertamina, Exxon, Chevron, Petro-China and Medco. Operations in Indonesia are provided by both mobile and fixed units. At drill sites where waste-water recycling is required, PT ESI supplement these treatment units with skid mounted mobile Reverse Osmosis systems. The technologies and solutions employed by PT ESI are developed in-house and examples of these are its proprietary Trident™ Electro Contaminant Removal (“ECR”) system, the Stage Contaminant Removal (“SCR”) process and Mobile On-Site Waste-Water Treatment (“OWT”) units

    Reverse Osmosis (RO) Systems
    Ultrafiltration (UF) Systems
    Multi-media Filtration (MMF) Systems
    +63 more
    agriculture
    manufacturing
    Devram International logo

    Devram International

    Verified
    India1-50 employees
    Granular Activated Carbon (GAC) Filters · Fixed Bed Activated Carbon Adsorbers · Powdered MOF Adsorbent Systems +19 more
    apac · mea

    DEVRAM INTERNATIONAL, headquartered in Surat, India, is a pioneering enterprise specializing in Snow and Rainwater Management with advanced contamination reduction abilities for storage and artificial groundwater recharge. Established as the commercial wing of Shree Someshwar Education Trust (SSET), DEVRAM INTERNATIONAL is driven by a mission to provide tech-enabled, nature-based solutions that address the world’s most pressing water and climate challenges. The company’s work integrates Integrated Water Resources Management (IWRM) principles and contributes across the source-to-sea water management cycle, ensuring holistic restoration of the global water cycle. Its innovative portfolio includes rainwater harvesting systems, stormwater management, aquifer recharge, artificial glaciers, desert trenches, rooftop water filtration, and green infrastructure models. These interventions directly reduce salinity in soils and aquifers, restore ecological balance, and enhance resilience to droughts, floods, and climate change. As the commercial promoter of the Global Rainwater Management Program (GRMP), DEVRAM INTERNATIONAL advances the vision of GRMP as a Global Common Minimum Program (GCMP) for nations and international bodies. GRMP demonstrates how rainwater and snowwater retention can restore entire natural cycles, while delivering unmatched benefits across the Sustainable Development Goals (SDGs). Alignment with the SDGs • SDG 2 (Zero Hunger): By reducing soil salinity, supporting organic farming, and ensuring water availability for agriculture, GRMP safeguards food security. • SDG 6 (Clean Water & Sanitation): DEVRAM’s recharge structures and contamination reduction technologies guarantee safe, sustainable drinking water for communities. • SDG 7 (Affordable & Clean Energy): By reducing dependency on energy-intensive desalination, GRMP lowers national energy bills and improves hydropower capacity. • SDG 9 (Industry, Innovation & Infrastructure): DEVRAM integrates nature-based water infrastructure with industrial operations, reducing OPEX and water footprints. • SDG 11 (Sustainable Cities & Communities): Through stormwater management and aquifer recharge, GRMP mitigates urban flooding and secures municipal supplies. • SDG 12 (Responsible Consumption & Production): Promotes a circular water economy, reusing wastewater, biogas from organic waste, and aligning with industrial CSR. • SDG 13 (Climate Action): By lowering GHG emissions and cooling local climates through water cycle restoration, GRMP strengthens resilience to global warming. • SDG 14 (Life Below Water): Free-flowing rivers, improved aquaculture, and reduced dam-related aquatic pollution support marine and freshwater ecosystems. • SDG 15 (Life on Land): DEVRAM’s interventions restore wetlands, mangroves, peatlands, and biodiversity-rich ecosystems, addressing land degradation. • SDG 17 (Partnerships for the Goals): The company actively collaborates with UN agencies, governments, World Bank programs, and private investors to scale GRMP globally. Founders and Leadership Dhaval Pandya, Co-Founder of DEVRAM INTERNATIONAL and CEO of SSET, is a globally recognized sustainability leader. He co-developed the Global Rainwater Management Program (GRMP), recognized by the United Nations Global Water Partnership (GWP) and the Government of India. As a Technical Committee Member (WRD03) of the Bureau of Indian Standards (BIS), he contributes to national water policy frameworks. His work is featured in UNCCD IWRM Action Hub and global forums like COP, Stockholm World Water Week, and World Bank SDG reviews. Manalika Pandya, Co-Founder, plays a critical role in embedding social, gender, and educational dimensions into GRMP. Her focus on women empowerment, local capacity building, and community-driven adoption ensures the program’s sustainability at the grassroots. Impact and Recognition DEVRAM INTERNATIONAL has piloted groundbreaking projects such as: Kawas Village (Gujarat, India): A GRMP model village achieving self-reliance in water, organic farming, and biogas, while resolving conflicts with industries. Delhi’s Water Paradox (Figshare Study): Shows how GRMP can solve megacity water crises without costly desalination or dams. GSECL Surat Project: Demonstrates reduced industrial water costs through GRMP recharge planning, aligning profitability with SDG and ESG goals. These projects show GRMP’s potential to reduce industrial and municipal water supply costs by up 60%, avoid massive investments in desalination and dams, and enable nations to achieve water sovereignty. Core Competencies • Rainwater & Snowwater Harvesting • Artificial Groundwater Recharge & Salinity Reduction • Stormwater Management & Urban Flood Control • Transboundary Water Cooperation • IWRM & Source-to-Sea Water Governance • AI-Enabled Hydrological Modelling & Policy Analytics • Environmental Services Restoration (Wetlands, Mangroves, Peatlands) • Circular Economy.

    Activated Carbon Filtration
    Granular Activated Carbon (GAC) Filters
    Multi-media Filtration (MMF) Systems
    +25 more
    manufacturing
    utilities
    Brine Consulting logo

    Brine Consulting

    Verified
    Netherlands1-50 employees
    Mechanical Vapor Recompression (MVR) · Atmospheric Evaporator · Spray Evaporator +130 more
    apac · china · europe +3 more

    BRINE CONSULTING delivers senior-level strategy, technical design, and actionable insight across the full lifecycle of water-related challenges. We support clients with advisory and due diligence, advanced brine management and resource recovery, industrial and municipal water reuse, and MLD/ZLD systems. Our team also leads ESG and climate-resilience strategy, innovation scouting, and international development and PPP advisory. With deep specialization in desalination, brine valorization, circular economy models, and high-impact infrastructure, we help organizations turn water and waste streams into opportunities, providing clear thinking, rapid delivery, and solutions built for real-world results.

    Activated Carbon Filtration
    Reverse Osmosis (RO) Systems
    Ultrafiltration (UF) Systems
    +85 more
    manufacturing
    energy-production
    Hainan Litree Water Purification Technology Industry Co., Ltd. logo

    Hainan Litree Water Purification Technology Industry Co., Ltd.

    Verified
    China200+ employees
    Tubular Ultrafiltration Units · Hollow Fiber UF Modules · Flat Sheet UF Membranes +17 more
    apac · china · europe +3 more

    Litree: Pioneering Ultrafiltration for a Water-Secure World Founded in 1992, Litree has dedicated 30+ years to redefining water purification through ultrafiltration (UF) membrane technology—our core expertise and passion立升(Litree). As a global high-tech enterprise rooted in independent innovation, we’ve evolved from a membrane R&D startup to one of the world’s leading water problem solvers, with over 146 core patents and state-of-the-art manufacturing hubs in Haikou and Suzhou, China立升(Litree). Our signature hollow fiber UF membranes are engineered to deliver unmatched performance: 0.01μm precision removes 99.99% of bacteria, viruses, and contaminants while preserving essential minerals—striking the perfect balance between purity and health立升(Litree). This technology powers our diverse solutions, from residential whole-house systems to large-scale municipal projects and industrial wastewater treatment, all designed for sustainability and cost-efficiency. What truly sets us apart is our commitment to making safe water accessible. We’ve completed projects serving 50,000+ residents with centralized purification systems that cut construction costs and footprint by 50% compared to traditional setups—proof that advanced technology can also be affordable. Today, our solutions reach 60+ countries, supporting 3,000+ industrial clients and millions of households worldwide. At Litree, water isn’t just our business—it’s our mission. We believe every drop matters, and we’ll keep pushing boundaries to create a future where clean, safe water is a universal right, not a privilege

    Ultrafiltration (UF) Systems
    Membrane Filtration Technologies
    pH Adjustment and Neutralization
    +64 more
    agriculture
    manufacturing
    Hewitech GmbH & Co.KG logo

    Hewitech GmbH & Co.KG

    Germany51-200 employees
    Trickling Filters · Sedimentation · Filtration
    europe

    Hewitech zählt weltweit zu den führenden Herstellern von Kunststoffeinbauten für Kühlturm- und Abwasseranlagen.

    Rainwater Harvesting
    Industrial WWTPs
    Construction and Real Estate
    Manufacturing
    Guangzhou Haike Electronics Technology Co., Ltd. logo

    Guangzhou Haike Electronics Technology Co., Ltd.

    China200+ employees
    Filtration · Activated Carbon · Fixed Bed Activated Carbon Adsorbers +3 more
    apac · china

    Guangzhou Haike Electronics Technology Co., Ltd. is a leading manufacturer of air and water purification systems, specializing in advanced filter technology. With a strong global presence, HOKO collaborates with Fortune 500 companies, producing high-quality smart home appliances and exporting to over 100 countries.

    Point-of-Use (POU) Filters
    UV Disinfection
    Manufacturing
    Healthcare
    PNR ITALIA Srl logo

    PNR ITALIA Srl

    Verified
    Italy51-200 employees
    Spray Evaporator · Self-cleaning Screen Filters
    apac · europe · latam +2 more
    19 case studies

    We produce a comprehensive range of spraying solutions, encompassing everything from small-scale nozzles to large industrial spraying systems. Our diverse product line includes various types of nozzles tailored to meet the specific requirements of every application and customer need. The company was established in Milan in November 1968, focusing on distributing parts and components for fire protection systems. Over time, we expanded our offerings to include a diverse range of industrial sprayers tailored to various applications. In addition to our distribution and manufacturing of fire protection system components and industrial sprayers, we specialize in designing and producing pneumatic spray nozzles for industrial use and tank washing nozzles. Our product line also encompasses a variety of complementary accessories essential for industrial washing, including filters, spray guns, and hoses. Furthermore, we offer ejectors, blower nozzles, swivel joints, and hose clamps to provide comprehensive solutions for our customers' needs. PNR Italia is part of the Tecomec Group and oversees four other affiliated companies to form PNR Company, a consolidated reality with a significant presence on the market.

    Microfiltration (MF) Systems
    Disinfection Technologies
    Disinfection Chemicals
    +7 more
    agriculture
    manufacturing
    Airwatec / CINTROPUR logo

    Airwatec / CINTROPUR

    Belgium51-200 employees
    Filtration
    europe · mea

    Cintropur, based in Belgium, specializes in manufacturing high-quality water filtration systems suitable for both private and industrial applications. Their products are designed for the treatment of tap, rain, spring, and well water, and are used in irrigation and sanitation systems across various industries.

    UV Disinfection
    Bag and Cartridge Filtration
    Rainwater Harvesting
    Utilities
    Manufacturing
    Dehoust GmbH logo

    Dehoust GmbH

    Germany51-200 employees
    Sedimentation · Filtration
    europe

    Dehoust GmbH specializes in manufacturing advanced water treatment and storage solutions. Based in Germany, they cater to industries such as construction, manufacturing, and utilities, offering products like greywater recycling systems and storage tanks for various applications.

    Greywater Recycling
    Rainwater Harvesting
    Storage Tanks and Reservoirs
    Construction and Real Estate
    Manufacturing
    Pollet Water Group logo

    Pollet Water Group

    Belgium200+ employees
    Filtration
    europe

    Over three decades, Pollet Water Group has been thinking water. It’s our mission to improve the quality of life, the comfort of doing business and the efficiency of industrial processes through a network of specialized water treatment companies.

    Reverse Osmosis (RO)
    Ultrafiltration (UF)
    Industrial WWTPs
    +1 more
    Utilities
    Manufacturing
    Industrial Pipework Services logo

    Industrial Pipework Services

    United Kingdom

    At Industrial Pipework Services, we provide bespoke engineering services. With over 25 years’ experience IPS can offer complete mechanical engineering solutions including design, manufacture & installation services. Our experienced workforce are trained to the highest standards. IPS is situated within easy access to the M4 corridor approximately 30 minutes North of Cardiff. The company embraces innovative thinking while utilising the latest technology. IPS operating base comprises of 30,000 square foot of workshops, offices and assembly areas.  The Workshops are fully segregated for the manufacture of both carbon steel and stainless-steel products and are serviced by dedicated overhead gantry cranes. With over two decades of engineering experience the company strives to combine first class engineering and design to deliver the high quality that is required.  The Company maintains a proactive approach, working closely with our Clients to achieve our collective aims for each scheme. This ambition is underpinned by an uncompromising commitment to attain the highest standards of health, safety and environmental care. IPS provides continued excellence in design, manufacturing and installation gained from many years experience within the industry. Our In-House design capability allows the company to provide a full engineering design service using the latest Auto CAD software packages. IPS offers a design service for both pipework and steelwork systems from proposal drawings to the production of as built drawings. IPS Design Office provides all relevant AutoCAD drawings for steelwork and pipework, Isometric drawings for fabrication, general layout drawings for plant and equipment and As Built drawings. Structural steelwork calculations and flow characteristics are also provided as required. IPS offer a full 3D surveying services and production of cloud point data for project modelling. IPS operates primarily within the Water Industry and provides services for both clean water and sewage. IPS is a Tier One Mechanical Engineering Specialists Provider to Dŵr Cymru Welsh Water and the Strategic Alliance. IPS operate nationally and have delivered projects throughout the UK for many Water Utility companies including Anglian Water, Thames Water and Bristol Water. Continual improvement into our infrastructure and the development of new IT systems has brought us to a level consistent with the requirements of our clients. IPS offers a complete project management service, including operation of Principal Contractor role as well as delivering turnkey projects. Experience gained in the water industry has enabled us to manage the competing demands of cost, quality and safety for all our projects.

    Networks - Water Supply
    Contractors
    Bramley Engineering (Lifting Gear) Ltd logo

    Bramley Engineering (Lifting Gear) Ltd

    United Kingdom

    Bramley Engineering ltd was established in Ivinghoe in 1981 by John & Davina Bramley following John’s apprenticeship and early career in South Africa. Now based in Leighton Buzzard and run since 2007 by Graham and Emma Bramley the company remains a family run business encompassing a hardworking, fun, and fair working ethos that benefits our customers, suppliers, and staff. Over the last 40 years the company has evolved to ensure it meets health and safety requirements, is up to date with legislation and has safe working practices. We became ISO registered in 2004 following a large project for the nuclear power sector, we have continued to develop our systems as demands and in-house practices have required it. Bramley Engineering manufactures many forms of lifting equipment including overhead cranes, gantries, monorails, jib cranes and davits. We specialise in bespoke lifting solutions and have over the years provided solutions for many varied situations. Using the latest in CAD technology Graham continues to improve and adapt his knowledge to the needs of the customer. Our customers are many and varied and include the water industry for whom we have been working for twenty-five years, construction companies both large and small and the rail sector. In 2018 we won a contract to provide a grid system of 18 cranes in Lincoln for Siemens rail, this project saw us win our first award for ‘working as one’ with the customer. This award was greatly appreciated as not only did it show the customers appreciation it reminded us that our working practices and ethos are in line with ‘lifting your expectations’. We are members of the Lifting Equipment Engineers Association (LEEA) whose knowledge and expertise are always on hand should we require assistance. They audit us annually and ensure we are up to date with latest legislation and that our working practices meet the needs of our customers. As well as the cranes and lifting solutions we provide LOLER examinations and sell all ‘below the hook’ lifting accessories. We have an online system that keeps records of all the equipment we have examined. Our customers can always have access to their certificates ensuring they are compliant with health and safety requirements. We hold stock of web and round slings, shackles and chain slings and welcome customers to visit our premises to discuss their needs. Bramley Engineering always welcome new and exciting challenges with both existing and new customers.  We relish the chance to expand our bespoke lifting portfolio and to use our extensive knowledge and innovative outlook to help others find their perfect lifting solution.  We are always striving to lift expectations.

    Contractors
    Overhead Cranes & Hoists
    Steve Vick International Ltd logo

    Steve Vick International Ltd

    United Kingdom

    Steve Vick International (SVI) is dedicated to delivering cost-saving solutions for damaged, redundant or outdated underground pipework. Since its foundation in 1981, SVI has been at the forefront in developing products and techniques for the repair, renovation and decommissioning of pipes. Predominantly our work has been in the gas industry but increasingly we are undertaking projects in the water and nuclear sectors. We are the UK’s leading producer of Pipe Coil Trailers and offer a range of Pipe Handling equipment such as Handlers, Crackers and Cutters. Some of our latest innovations include the PE Pipe Cutter, the Pipe Feeder for Pre-Insulated coiled pipe, PE Live Head for Live Mains Insertion, the Perpetual Pipe Pusher, FBOS (Foambag Operation on Stubs) and SMARTester. WATER: For over 20 years water utilities and their contractors in the UK and overseas have used our pipe handling equipment to improve their efficiency and safety. Today our products include Pipe Handlers, Pipe Coil Trailers and Pipe Cutters as well as our patented DRAINBLOCK™ and RATBLOCK™ sealing systems. GAS: In the UK we are major suppliers to all the gas distribution networks. Many of the techniques we have pioneered have become the preferred methods of working in the industry and our resin foam sealant products and associated equipment are key to many of the cost-saving renovation processes used. NUCLEAR: SVI offer solutions to the problems associated with decommissioning and sealing disused pipework, ducts, sleeves and ventilation shafts. Our technology can also be designed for the mass filling of large and complex voids and is a lightweight alternative to cement grout. We have worked at Hinkley, Sellafield, Harwell, Chapelcross and Hunterston. CONTRACT SERVICES: A rapidly expanding part of our business is our Contract Service department who are well known for their work in the field of renewing and repairing underground gas pipes, for the UK Gas Distribution Networks. However, they are becoming increasingly involved in projects being undertaken by water utilities, electricity providers, rail networks, civil engineers, construction companies and local councils. This reflects the range of skills and expertise available to solve on-site problems associated with pipe repair, renovation, and diversion. Located strategically around the UK the highly skilled team can provide a fast response, emergency repairs and a rapid call out service which is offered 24 hours a day, 7 days a week. HIRE: We offer specialist plant and equipment for the Utilities Industries. Products available for hire include our Pipe Handlers, Perpetual Pipe Pusher, Pipe Coil Trailers, Rapid Rotary Cutters, Rapid Window Cutters, MACAW Pipe Crackers, CRACKERJACK and Mini Purge. All our hire equipment comes with onsite support from our highly experienced engineers and our products are fully maintained and serviced at our depots. All equipment is also available to purchase. SMARTester: SMARTester is the wireless pressure test system, that ensures absolute traceability and best practice. The system combines: SMARTester pressure sensor, an intuitive App and a Dashboard database of test evidence. Together the 3 components work to give you confidence that your tests are highly accurate, fully compliant and that evidence is traceable.

    Networks - Water Supply
    Asset Maintenance & Rehabilitation
    ERG (Air Pollution Control) Ltd logo

    ERG (Air Pollution Control) Ltd

    United Kingdom

    ERG (Air Pollution Control) Limited is the leading supplier of wastewater odour control units (OCUs) for the UK Water Industry and increasingly supplies odour control systems around the world. In addition, ERG can provide specialist advice and solutions to assist in achieving IED compliance for relevant odour assets. In the past 10 years, we have provided over 200 OCUs and count all the UK water companies and major main contractors among our clients. So, whether you are looking for a large, multi-stage chemical scrubbing system, an environmentally friendly bio-trickling filter or bio-scrubber system, a simple but efficient activated carbon or dry media system, an Odorgard™ from ERG Hygrade, or even an RTO (Regenerative Thermal Oxidiser) system, ERG can develop a tailor-made solution to suit. All ERG Odour Control Systems are: Purpose-designed by our process engineers to eliminate the cocktail of inlet odours to the required standard. Optimised to give the best value capital and running costs. Built and tested to current BS EN and WIMES specifications. Guaranteed to achieve the required discharge odour concentration and supported by our skilled and experienced maintenance team. Minimising non-compliant emissions to atmosphere by regular, planned maintenance protects your reputation and saves you money. Our maintenance department can help keep your air pollution and odour control systems running effectively and at the lowest operating costs. Our specialist engineers are experts in maintaining most types of odour and air pollution control equipment and always work to the highest safety standards. We often save clients many thousands of pounds by repairing and enhancing dilapidated air pollution and odour control equipment. We are a framework supplier for odour control maintenance to Southern Water, Scottish Water and Thames Water, regularly maintaining more than 120 sites.

    Treatment Works Products/Services
    Spaans Babcock Ltd logo

    Spaans Babcock Ltd

    United Kingdom

    Spaans Babcock was established in 1897 and has been supplying equipment into the water industry since this date. The company are the world’s largest supplier of Archimedes screws having thousands of screws installed throughout the UK & tens of thousands worldwide. Additionally the company supply, install and maintain aeration equipment (surface and brush aerators), screens and screenings handling equipment, a complete range of flow isolation equipment including penstocks, flap valves and stop-boards. Over recent years the company has expanded significantly with the addition of Archimedes screw generators to its product range. This is a natural progression for the product which is perfectly suited to low head applications, they offer several advantages over alternative technologies including no requirement for fine screens, fish friendliness, non-blocking and low maintenance due to the simple & robust design. The screw generator is offered in various alternative designs to suit given site circumstances. Spaans have agreements in place with many of the UK Water companies & agencies for the design, manufacture, supply, installation and maintenance of their equipment. Centrally based in Heywood, the company offers a full range of services from supply only contracts through to development of complete bespoke packages. Project management is handled by the companies own project teams and the company has its own SHE officer to ensure compliance with the stringent UK requirements. All installation and maintenance work is handled by in house teams of engineers.

    Renewables & Energy Management
    Cadman Cranes Ltd logo

    Cadman Cranes Ltd

    United Kingdom

    Cadman Cranes is a leading provider of lifting solutions in the UK with over 50 years’ experience and a reputation for quality, reliability and safety. At the very forefront of sustainability within the industry, Cadman Cranes offer responsible and collaborative turn-key solutions across all industries. From depots in Colchester and Brentwood, Cadman is ideally positioned to cover the East of England and beyond, living and breathing its mission to provide safe lifting solutions to industry and communities in a collaborate, considerate and sustainable way. Cadman has always placed great importance on delivering so much more than just crane hire. Its values are focussed on the success of its clients, its people and its community, and it takes great pride in going the extra mile on every job, no matter how big or small. Cadman Cranes add value to your hard work and offer a full-service lifting solution that goes far beyond just crane hire. It doesn’t just look for customers, it looks for partnerships based on trust, quality and safety. Services include: Contract lift services: Our complete package service is ideal for those who require a fully managed lifting solution, removing your risk and liability, and ensuring that we deal with all of the ‘heavy lifting’. Crane hire services: Cadman Cranes is the leading crane rental company in the East of England, providing crane hire across London, Essex, East Anglia, and all over the UK. With cranes available 24/7, 365 days a year, we are well positioned to keep your operations moving. Tank clearance, dredging, and grab solutions: Cadman Cranes offers innovative tank clearance solutions with our custom-designed grab attachment. The remote-controlled grab, mounted to the hooks of our mobile cranes, can reach up to 60 meters and handle a variety of materials, including sewage waste, sludge, grit, mud, and sand. This service is ideal for wastewater treatment plants, sewage facilities, digester tanks, aeration tanks, ports, and any industrial sites that require regular tank cleaning, maintenance, or dredging. Specialist lifting equipment for utility installation projects: Utilising our range of specialist lifting equipment, we have assisted on some of the most complex utility installation projects throughout the East of England, solving problems currently unimaginable by other mobile crane hire companies. Our innovative Compact Crawler Cranes, in combination with our remote-controlled telescopic hydraulic grab, have proved invaluable in providing the highest level of service and crane hire to the utilities sector. If you would like to work with Cadman Cranes or are looking to add a safe and considerate crane hire solution to your list of approved suppliers, Cadman would love to hear from you.

    Asset Maintenance & Rehabilitation
    AE Yates Group logo

    AE Yates Group

    United Kingdom

    Established in 1870, AE Yates is a progressive civil engineering contractor with an enviable track record of successfully delivering technically demanding high quality works to the complete satisfaction of a wide variety of public and private customers. An Integrated Construction Company A E Yates has grown to be an integrated construction company with a turnover of £50m, employing over 170 managerial, professional, technical and operational staff. Our company headquarters, based in Bolton, are strategically located to serve and communicate with clients throughout the United Kingdom with immediate access to road, rail and air transport facilities. We also have an operating base in Sheffield. AE Yates Group The group companies add value for customers not just in their specialism. When working together they can offer an integrated service through resource sharing and joint management of activities. Operational interfaces are removed eliminating potential co-ordination, management and programming issues for customers. AE Yates Civil Engineering Ltd AE Yates Directional Drilling Combined Soil Stabilisation Side Grip Piling SPI Piling Tritech Ground Engineering AE Yates Haulage Equipment and Skills Investment in the development of highly skilled operational teams up to date equipment has reinforced and enhanced our capability in all areas of operations. We own and operate an extensive fleet of general civil engineering and specialist plant and equipment. Experienced and Dedicated We are a highly experienced and respected civil engineering contractor operating to an Integrated Management System which is fully accredited to IS 9001:2015, ISO14001:2015 and ISO45001:2018 by BSI. We are fully committed to meeting the required standards of quality, customer care, environmental awareness, safety, health, time and cost demanded by our clients. We are fully supportive of the UK industry’s drive towards Continuous Improvement, Best Value and Constructing Excellence.

    Renewables & Energy Management
    Contractors
    JK Fabrications Ltd logo

    JK Fabrications Ltd

    United Kingdom

    With over 30 years of experience delivering expertise in the industry, JK Fabrications Ltd has become one of the front runners and will keep challenging ourselves and others to improve our Environment as we believe that; Our Environment, is our Future. At JK Fabrications, we are an engineering company that takes pride in our family roots, with an aim to continue to successfully grow our business. Our company values are incorporated into everything we carry out and we seek to work with like-minded companies. Established in 1998, JK Fabrications specialises in efficent, effective, and environmentally sensitive solutions to the Water Treatment, Waste Water, Waste to Energy, and Pharmaceuticals Industry. With over 30 years of experience delivering expertise in the industry, JK Fabrications has become one of the front runners and will keep challenging ourselves and others to improve our Environment as we believe that ‘Our Environment, is our Future’. With the ease of access to Northern Ireland’s principal motorway network and equal distance between both Belfast Airports and Dublin Airport, JK Fabrications’ 50,000 Sq/ft premises in Newry are the perfect location to produce and deliver your project. Design We have a fully equipped in-house design team with over 65 years of combined technical, manufacturing, and sector-specific experience, that are highly skilled and trained using the very latest design software. Manufacture We have built our reputation by producing specialised products for the waste-to-energy, wastewater, water treatment, and pharmaceutical industries. Our experienced welders and fabricators along with our state-of-the-art machinery make sure that each project is carried out to a high standard. Install We have an experienced installation team with a dedicated core team of engineers, mechanical fitters, and coded welders who have over 30 years of experience in the supply and installation of our fabricated products for a wide range of projects throughout the UK and Ireland. Commission Our experienced commissioning engineers will attend the site to oversee the installation of systems, plants, and equipment. They will commission, test, and optimise the equipment as well as provide the operators with operation and maintenance manuals. Products include: Stainless Steel Pipework | Stainless Steel Vessels (inc Pressure Vessels) | Mild Steel Pipework | Lamellas | Picket Fence Thickeners | Rectangular Bridge Scrapers | Half Bridge Scrapers | Conical Settlement Tanks

    Pipeline & Pipework Products
    Accreditations
    Carlow Concrete logo

    Carlow Concrete

    United Kingdom

    Carlow Concrete is a market leader in water retaining precast concrete structures in both the United Kingdom and Ireland. Production at our state of the art plant in the South East of Ireland is carried out using the most modern and innovative methods and equipment, for the quality production of our products ensuring the highest standards of quality and specification compliance are achieved every time. As part of the Burren Precast Concrete Group, the company has the resources and infrastructure to meet the high demands of our customers in relation to quality of service and product. Our organisation benefits from a team with combined expertise of over 100 years in the precast industry. The company has the technical expertise, the flexibility in production methods and the resources to Interpret, Design, Manufacture and Assemble to the highest standards to meet the requirements of its customers, bringing modern methods of construction through the benefits of off-site construction, building information modelling (BIM) and highly experienced installation teams. Our expansive range of products are devised specifically for both water and wastewater projects and are unrivaled in terms of design, quality and ease of installation. Our solutions offer international, national and customer specification compliances and meet all water companies’ asset standards throughout the UK & Ireland. Site installations typically achieve 25% to 50% reduction in programme with fewer people and plant requirements, meaning substantial savings to both preliminary and direct costs. Stormwater attenuation. Flood alleviation. Service reservoirs. Precast filter bed wall and tile system. Activated sludge plant. Final/primary settlement tanks. Retaining walls.

    Storage Tanks
    Contractors
    Evergreen Water Solutions logo

    Evergreen Water Solutions

    United Kingdom

    A leading supplier of progressive wastewater treatment systems Evergreen Water Solutions works closely with a number of international engineering companies whose expertise are in scalable wastewater treatment systems and containerised wastewater treatment systems for municipal and industrial application. Evergreen Water Solutions offers a comprehensive engineering service. Our company incorporates initial design and planning, to implementation of projects that are delivered on time and on budget. Our expertise in wastewater treatment covers infrastructure development, package sewage treatment systems and advanced treatment technology for wastewater recycling with the strictest treatment requirements. The goal of Evergreen Water Solutions is to exceed the expectations of our clients, foster long-term relationships, and make a positive impact on the environment and industry standards. Evergreen Water Solutions use innovative products and suppliers to source, design and implement leading environmental water and wastewater treatment products and solutions. All new equipment and suppliers are required to undergo pre-qualification program and a series of acceptances and trials are applied prior to the approval of the vendor. Evergreen Water Solutions’ pre-qualification program guarantees you our clients that the products we source are of the highest standard within the industry, these products along with the expertise within Evergreen Water Solutions ensures that the solution we provide will meet and exceed any expectation you might have.

    Treatment Works Products/Services
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    Rainwater Harvesting Equipment: Filters, Tanks, Pumps, and Controls for Residential and Commercial Systems

    Rainwater harvesting equipment encompasses the full component chain from roof collection to point of use: guttering and downpipes, first-flush diverters, pre-tank filters, storage tanks, calmed inlets, submersible pumps with floating suction, controls and level sensors, mains top-up devices, and distribution pipework. Pre-tank (above-ground) filtration: self-cleaning vortex filters (Wisy WFF100 or WFF150, 280 or 380 micron stainless steel mesh, hydraulic capacity 1.2 to 4.2 L/s) or downpipe filters (3P Technik FP300) remove coarse debris before tank entry while using roof flow to self-clean, returning retained solids to drain. Calmed inlet: submerged floating inlet with 350 to 500 micron filter inside the tank separates incoming water from settled sediment; ensures settled particulate is not disturbed during filling. Floating suction: pump draws from mid-tank depth (not bottom sediment layer), maintaining water quality at the outlet. UK compliant systems require WRAS approval mark on all components in contact with water supply.

    Storage tanks for rainwater harvesting: above-ground (polyethylene, 100 to 10,000 L; UV-stabilised black or dark green to inhibit algae growth; WRAS-approved materials); below-ground (polyethylene: Graf Carat S/XL range, 3,750 to 10,000 L; concrete precast; GRP/fibreglass for large commercial volumes 20,000 to 500,000 L). Below-ground polyethylene tanks require traffic-loading specification (SLW 30 or SLW 60 per EN 1250) for installation under driveways or parking areas. GRP/fibreglass tanks (bespoke fabrication, BS 4994 design): suitable for large commercial and industrial volumes; multiple compartments; integral pump chambers. Concrete precast tanks (BS 5911): high durability, negative external groundwater pressure resistance, suitable for high-groundwater-table sites where polyethylene tanks require backfill restraint or anti-flotation anchoring. Tank inspection access: minimum 600 mm diameter manhole cover per BS EN 476.

    Control systems and pumps for RWH: submersible centrifugal pumps (Grundfos CM, SBA, or DAB DIVERTRON series; typical pressure 2.0 to 4.0 bar at 30 to 100 L/min for residential); pressure vessels (membrane expansion vessels, 8 to 24 L) maintain system pressure between pump cycles, reducing start frequency to extend pump life. Control units (Grundfos RainManager, Wisy Level Control, Graf GFRT): monitor tank level via ultrasonic or float sensor; switch to mains top-up via solenoid valve when tank falls below low-level setpoint; provide mains supply via Type AA airgap (required by WRAS and Water Supply (Water Fittings) Regulations 1999) ensuring no cross-connection between rainwater and potable supply. Telemetry and remote monitoring (smart RWH controllers with app-based alerts): log yield, demand, and top-up volumes; detect pump fault conditions. Commercial systems: booster sets (2 to 4 pump duty-standby manifolds, frequency-controlled) with central control panel, remote monitoring via BMS or GSM, and automatic chemical dosing for Legionella control in large storage volumes.

    Post your rainwater harvesting equipment project — get matched proposals

    Frequently Asked Questions

    What equipment is needed for a complete rainwater harvesting system?

    A complete residential RWH system comprises: (1) Pre-tank filter: self-cleaning vortex filter (e.g. Wisy WFF100) or downpipe filter on each collecting downpipe - removes debris, leaves, and coarse particles; (2) Storage tank: 2,500 to 5,000 L below-ground polyethylene tank (Graf Carat, Kingspan Klargester) or above-ground tank for smaller applications; (3) Calmed inlet: submerged floating inlet distributor with fine filter prevents disturbance of settled sediment; (4) Submersible pump: centrifugal submersible with floating suction filter (draws from mid-depth, not bottom sludge); (5) Pressure vessel: 8 to 24 L membrane vessel reduces pump starts; (6) Control unit: level controller with mains top-up solenoid; (7) Mains top-up device: WRAS-approved airgap (Type AA) float valve assembly with 300 mm air gap - prevents cross-contamination with potable supply (legal requirement under Water Fittings Regulations 1999); (8) Distribution pipework: colour-coded buff/beige per WRAS IGN 9-02-04, labelled 'RAINWATER - NOT DRINKING WATER'.

    What is a first-flush diverter and why is it needed?

    A first-flush diverter automatically diverts the initial portion of each rain event to drain before allowing roof runoff to enter the storage tank. The first 0.5 to 1.0 mm of rainfall (0.5 to 1.0 L per m2 of roof area) carries the highest load of atmospheric dust, bird droppings, lichen, algae, and moss particles that accumulate on the roof surface between rain events. Without first-flush diversion, this polluted initial runoff enters the tank, degrading water quality (elevated turbidity, E. coli, heavy metals). Device types: (1) Downpipe chamber type: diverts flow into a holding chamber; slow-drain hole in chamber base empties it within 12 to 24 hours ready for next rain event; (2) Ball-float diverter: as chamber fills, ball float rises and seals the chamber outlet, directing subsequent cleaner flow to tank; (3) Continuous bleed: 2 to 5 percent of flow permanently diverted to maintain self-cleaning. BS 8515:2009 requires first-flush diversion as standard; minimum 0.5 L per m2 per event.

    How are rainwater harvesting tanks installed underground?

    Below-ground polyethylene RWH tank installation: (1) Excavation: minimum 300 mm clearance each side of tank; base preparation - 150 to 200 mm compacted granular sub-base (10 mm gravel or crusher run); (2) Tank placement: crane or excavator; tanks up to 5,000 L can be hand-slid on polythene sheet; (3) Backfill: pea gravel (6 to 10 mm single size) to tank shoulder level - NEVER use compacted clay or crusher run against polyethylene tank walls (overstressing); pea gravel backfill requires no compaction and evenly distributes earth pressure; above shoulder: normal backfill with shallow compaction passes; (4) Traffic loading: specify SLW 30 (pedestrian, light vehicle) or SLW 60 (heavy vehicle) rated tank and extension shaft for driveway/parking installation; (5) High groundwater: if seasonal groundwater within 500 mm of tank base, anti-flotation anchor straps or concrete deadman anchors required (buoyancy of empty 7,000 L tank = 7 tonnes uplift); (6) Commissioning: chlorinate tank (10 mg/L, 30-minute contact time), flush, then fill with rainwater or mains water to test system.

    What certifications should rainwater harvesting equipment have?

    UK required certifications: (1) WRAS (Water Regulations Advisory Scheme) Approval: all components in contact with water intended for domestic use must be WRAS-approved (or demonstrate compliance with BS 6920 extraction tests for materials); the WRAS Product Approval Scheme lists individually tested products; (2) BS 8515:2009+A1:2013: the UK standard for design, installation, testing, and maintenance of RWH systems - compliance is required under the Water Supply (Water Fittings) Regulations 1999 where installed; (3) For commercial systems: BREEAM Water credit Wat 01 awards credits for RWH system design and performance; (4) CE marking (EN 12566 for tanks in some configurations; EN 858 for separator elements); (5) For below-ground tanks under traffic: EN 1250 structural assessment certificate for relevant load class; (6) NSF/ANSI 61: for US installations, components in contact with potable or potable-adjacent water should meet NSF 61 extraction requirements. German DIN 1989 Parts 1 to 4 is the equivalent comprehensive standard in Germany.

    Case Study·Commercial and light industrial rainwater harvesting equipment supply
    Challenge

    A facilities management company procuring equipment for a rainwater harvesting retrofit across five hospital car park buildings in Yorkshire struggled to source components that met NHS Estates WRAS and HTM 04-01 requirements simultaneously, while keeping system cost within the GBP 120,000 budget allocated across all five buildings.

    Approach

    The contractor specified vortex pre-filters with WRAS-approved polyamide housings, below-ground polyethylene tanks with WRAS-approved inlet and overflow fittings, and a central booster set with NSF 61-listed bronze impellers. All pipework fittings were selected from the WRAS product approval database. A calmed inlet assembly and floating suction were specified per BS 8515 to maintain tank water quality without chemical dosing.

    Outcome

    All five systems were installed within budget at GBP 114,200 total. DWI and NHS Estates inspection confirmed WRAS compliance on all wetted components. Combined annual mains water saving of 2,100 m3 was verified against post-installation metering, reducing site water costs by GBP 7,300 per year across the portfolio.

    Questions to Ask Shortlisted Providers

    1. 1

      Are all wetted components WRAS-approved and listed on the WRAS Product Approval Scheme database?

      Non-WRAS components in any system connected to potable supply constitute a breach of the Water Supply (Water Fittings) Regulations 1999; water undertakers can require disconnection.

    2. 2

      What is the pre-filter mesh size and self-cleaning mechanism for the roof collection filter?

      Coarse debris removal (280 to 500 micron) before tank entry determines long-term water quality and maintenance frequency; hydraulically self-cleaning vortex filters are preferred over cartridge filters in all but the smallest systems.

    3. 3

      What tank material and structural loading certificate applies (PE, GRP, concrete, traffic loading class)?

      Below-ground tanks under vehicular areas must carry EN 1250 traffic load certification; incorrect loading class results in tank deformation and potential collapse.

    4. 4

      What is the mains top-up device type and has its airgap configuration been confirmed as Type AA per WRAS?

      The airgap is the only permissible backflow protection method between potable supply and a harvested rainwater system; float valves or solenoid valves that create a submerged inlet are not compliant.

    5. 5

      Does the system include telemetry for yield and demand monitoring and is data exported to the BMS?

      Monitoring enables proof of performance for BREEAM credits and identifies pump faults or top-up overreliance before they become compliance issues.

    What Drives Cost in This Category

    Pre-filter specification and quantity

    Self-cleaning vortex filters (Wisy WFF100 to WFF280) cost GBP 180 to 650 per unit; one filter per 100 to 200 m2 of roof is typical; inferior cartridge filters cost less but require frequent manual cleaning.

    Tank volume and installation type

    3,750 L polyethylene below-ground tanks cost GBP 600 to 950 supply-only; 10,000 L units cost GBP 1,800 to 3,200; GRP bespoke tanks for commercial volumes above 20,000 L cost GBP 120 to 200 per m3.

    Pump set and controls grade

    Single residential pump sets cost GBP 1,200 to 3,500; commercial duty/standby booster sets with frequency control and BMS output cost GBP 8,000 to 35,000.

    WRAS compliance verification and documentation

    Sourcing and documenting WRAS approval for all components adds 3 to 8% to equipment procurement cost but is non-negotiable for legal compliance; non-WRAS components can cost 15 to 30% less but carry regulatory and liability risk.

    Key Regulations & Standards

    Water Supply (Water Fittings) Regulations 1999

    All fittings, equipment, and materials in contact with water supplied by a water undertaker must comply with Schedule 2 (fluid category backflow requirements) and be of suitable materials per Regulation 4; WRAS approval is the standard evidence of compliance.

    BS 8515:2023 Rainwater Harvesting Systems

    Code of practice specifying component requirements including filter specifications, tank materials, mains top-up device type, and pipework identification; suppliers should demonstrate compliance against each clause for systems installed under Building Regulations Part G.

    BS 6920 Suitability of Non-Metallic Products in Contact with Water

    Specifies extraction test protocols for materials used in water contact applications; WRAS approval requires BS 6920 test data; specifying non-tested materials risks regulatory non-compliance and potential public health liability.

    CE Marking under EN 12566 (Tanks) and EN 1250 (Traffic Loading)

    Below-ground polyethylene and GRP tanks require CE marking and structural test certificates; tanks installed under driveways or roads require EN 1250 load class certification appropriate to expected vehicle loads (SLW 30 or SLW 60).

    Explore Related Categories

    Rainwater System

    Rainwater Harvesting CompaniesFirst-Flush Diverter CompaniesTank Fabrication Companies

    Tanks

    GRP / FRP Tank CompaniesHDPE Tank CompaniesConcrete Tank Companies

    Browse the full provider directory

    Comparing rainwater harvesting equipment companies is one slice of a larger shortlisting decision. Explore the complete directory of wastewater treatment companies, then filter by region, sector, and technology before you request scoped proposals.

    Open the directory

    Related Articles from Aguato Insider

    • Industrial Rainwater Harvesting Systems: A Buyer's Guide
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