As water resources come under increasing pressure and hosepipe bans become more common, more homeowners, businesses, and developers are looking for smarter ways to reduce their reliance on mains water.
At Aqua Response, we design and install advanced GRAF rainwater harvesting systems, helping clients make better use of one of the UK’s most valuable natural resources.
A Smarter Way to Use Rainwater
Unlike many traditional rainwater harvesting systems that top up underground tanks with mains water, GRAF’s latest AA-compliant systems are designed to maximise the amount of free rainwater available.
Instead of filling the underground tank with mains water when levels become low, the system automatically supplies mains water directly to the property’s plumbing via an integrated air-gap cistern. This means the underground storage tank remains dedicated to harvested rainwater, improving efficiency while remaining fully compliant with the Water Supply (Water Fittings) Regulations 1999.
The result is a more sustainable, efficient, and regulation-compliant solution.
How the System Works
Rainwater is collected from the roof and directed into an underground storage tank through high-performance filtration, removing leaves and debris before the water is stored.
When rainwater is needed, an intelligent pump system draws water from the cleanest part of the tank using a floating intake. This harvested water can then be used throughout the property for a range of non-potable applications, including:
- Toilet flushing
- Washing machines
- Garden irrigation
- Vehicle washing
- Pressure washing and outdoor cleaning
If rainwater levels become low, the system automatically switches to mains water without filling the storage tank, ensuring a continuous supply while preserving maximum rainwater storage capacity.
Designed for Efficient Installation
GRAF rainwater harvesting tanks are manufactured from 100% recycled plastic and are available in capacities ranging from 1,500 to 7,500 litres.
Their shallow-profile design offers several installation benefits, including:
- Reduced excavation depth
- Faster installation
- Lower installation costs
- Ideal for new-build and refurbishment projects
- Optional vehicle-rated covers for driveways and trafficked areas
The systems are designed to deliver long-term reliability while minimising disruption during installation.
Why Choose Aqua Response?
At Aqua Response, we don’t simply supply rainwater harvesting systems—we provide a complete turnkey service.
Our experienced team manages every stage of your project, including:
- Site surveys and consultation
- System design
- Excavation and groundworks
- Tank installation
- Pipework and drainage connections
- System commissioning
- Ongoing maintenance and support
Whether you’re installing a rainwater harvesting system for a new development, commercial premises, agricultural facility, or private home, we’ll design a solution that meets your property’s requirements while helping reduce water consumption and long-term running costs.
The Benefits of Rainwater Harvesting
✔ Reduce mains water consumption
✔ Lower water bills
✔ Improve environmental sustainability
✔ Comply with current water regulations
✔ Make better use of natural rainfall
✔ Reliable water supply for non-potable applications
Future-Proof Your Water Supply
As water conservation becomes increasingly important, investing in a rainwater harvesting system is a practical way to reduce costs while supporting a more sustainable future.
If you’re considering installing a rainwater harvesting system, speak to the team at Aqua Response. We’ll help you choose the right solution for your property and ensure it is professionally installed to the highest standard.
Speak to Our Rainwater Harvesting Specialists
Choosing the right system involves more than picking a tank size. The most effective setups are designed around your roof area, expected demand, available space and intended use — get any of those wrong and the system underperforms exactly when you need it most.
Aqua Response designs, installs and maintains rainwater harvesting systems for homeowners, developers and commercial sites across Wales and England, alongside our wider water resilience services. Whether you’re looking to cut water bills, build resilience against future bans, or meet sustainability targets on a commercial site, our team can help you invest in a system that performs long after this summer’s restrictions lift.
Ready to make every drop count? Get in touch with Aqua Response on 02920 885660 or info@aquaresponse.co.uk to discuss a rainwater harvesting system for your property.
