Why recycle rainwater?
Why recycle rainwater?

Rainwater is a valuable resource which can reduce reliance on mains water supplies and alleviate flood risk

Communal Rainwater Harvesting Versus Individual House Systems

Did you know that many regions in England are considered ‘seriously water stressed’ by the Environment Agency? As the country's future water deficit grows to an additional 5 billion litres per day by 2050, communal rainwater harvesting offers a long-lasting solution to improve water efficiency within homes.

Issues around water scarcity are not the only problem with water in the UK. Water management is also an issue with aging sewage infrastructure regularly reaching capacity and releasing pollutants into nearby natural water courses.

Rainwater harvesting is a solution to both of these problems. Not only can systems reduce per capita consumption of water by replacing precious drinking water with recycled rainwater in non-potable outlets, but rainwater harvesting also prevents large volumes of surface water from entering the over-capacity drainage network.

Rainwater harvesting is proven to reduce water consumption in residential properties by up to 55%.

Our Communal System Types

Our team of experts are on hand to help you select the most efficient type of system for your residential project. Utilising over two decades of experience as a UK manufacturer and maintenance provider for water reuse systems, our team will assist with all aspects of your project, including sizing, technical help, water-saving estimates, supply, and installation. Take a look at some of our system types below.

 Community rainwater harvesting diagram showing rainwater being captured from roof areas and recycled.

Non Pressurised System

  • Able to provide high flow rates to points of use. 
  • Ideal for medium to large developments. 
  • Can be linked with on-site attenuation systems. 
  • Utilises a secondary header tank, sized to provide a suitable capacity based on the number of homes. 
  • Intelligent mains water top-up feature achieved via a compliant air gap in the header tank. 
  • Header tank, controls, and pump set housed in a small external building, constructed from either brick or GRP. 
  • Provides a reliable water supply in the event of a failure scenario. 

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 A rainwater harvesting diagram showing a storage tank and control unit

Combi System

  • Ideal for use in medium-sized apartment blocks or small-scale housing developments.
  • Integrates a secondary break tank within the combi control unit to provide a suitable internal capacity. 
  • Combi control units are supplied in a range of capacities, sized to the project specifications. 
  • Located in a plant room or weather-proof cabinet. 
  • Pre-wired, pre-built, pre-tested unit housing an energy-efficient booster set to provide a water supply to usage points. 
  • An automatic mains water top-up is achieved via a compliant air gap into the combi control unit. 

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Further Information

  • Remove ownership and maintenance responsibilities from the homeowner to a management organisation.
  • Remove internal components from homes, assisting with reduced risk of cross-contamination between the rainwater and mains water supplies.
  • Prevent homeowners from switching the system off due to a lack of knowledge.
  • Can be linked with onsite attenuation capacity for a more cost-effective per-dwelling solution.
  • Can work as part of a wider biodiversity plan whilst saving space by reducing the required capacity of swales and ponds.
  • Utilise commercial grade components for extended lifespan.
  • A single point of maintenance.
  • Mitigate the need for consumer behaviour changes in water usage by supplying them with rainwater.

Many rely on the ‘water fittings’ approach for achieving greater water efficiency within homes. Water fittings are technologies that reduce the use of water in key outlets, examples include air-assisted showers, aerated toilet flushing, and dual-flush toilets. Communal rainwater harvesting is the optimal water-saving solution because…

  • Communal systems cannot be simply removed by homeowners for high water using alternatives.
  • Using rainwater rather than mains water is commonly seen as indistinguishable.
  • A lasting piece of infrastructure which can be monitored, maintained, and enforced.
  • Offers centralised monitoring of water levels and water savings.
 Rainwater harvesting control unit showing internal filters and controls

Our Added Value Options

Our unique added value options enables your project to access additional filtration, UV disinfection, and installation services. Find out more here. 

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Constructionline Gold Member CHAS Accredited UK Rainwater Harvesting Association Member Safecontractor Approved Waterwise Affiliate UK Business Awards Winner 2022