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Here, you will find a range of rainwater harvesting systems to meet your specific needs. As every project is different in its own unique way, we offer a variety of solutions tailored to suit a range of budgets, properties, and demands.

Our rainwater harvesting systems utilise award-winning technology to collect and reuse rainwater efficiently, reducing environmental impact and saving precious mains water. From flat tank systems for small domestic projects to large-scale installations for commercial applications, our products are designed for maximum sustainability and efficiency. Our rainwater harvesting tank, made from 100% recycled plastic, and our award-winning filtration technology ensure pure, filtered rainwater suitable for a variety of uses.

High-quality, sustainable water solutions

Our team of professionals is here to help you find the perfect solution for your property. We take great pride in providing high-quality, sustainable solutions. Whether you’re a homeowner, self-builder, or a property developer, we can offer you the most suitable rainwater harvesting system for your project.

Would like to discuss your project and see how we can help? Click here

Check out our rainwater harvesting systems

Check Out One of Our Latest Projects

Our system allows homeowners to significantly reduce mains water consumption by efficiently collecting and storing rainwater.

Ideal for washing machines, toilet flushing, and outdoor taps, the Platin Direct system is a smart, eco-friendly choice for any home.

Watch now to discover how you can save water with our comprehensive rainwater harvesting packages.

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Use our rainwater harvesting tank size calculator

Planning a rainwater harvesting system? Our easy-to-use Rainwater Tank Size Calculator is here to help!

Just input your roof area, local rainfall data, and water usage needs, and our tool will recommend the ideal tank size for your project. This free tool simplifies the planning process, ensuring you invest in a tank that perfectly matches your needs.

Whether you're looking to reduce your water bill or make your home more environmentally friendly, our calculator is the first step towards a smarter, sustainable water solution.

Key Features

Eco-Friendly Installation

Eco-Friendly Installation

Save up to £60 per cubic metre of backfill material, as our tanks can be installed using gravel instead of concrete.

100% Recycled Tanks

100% Recycled Tanks

Contribute to a circular economy with our tanks that are made from 100% recycled plastic.

European Excellence

European Excellence

As the European market leader, benefits from over 50 years of industry-leading experience.

Fill out the form below if you have a project and would like advice on the best system for your project.

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Frequently Asked Questions

What are the main benefits of using rainwater harvesting systems?

Rainwater harvesting systems offer numerous benefits, including reduced water bills, decreased demand on mains water supplies, and a lower carbon footprint. They also help conserve natural resources and provide a sustainable water source for non-potable uses like irrigation, toilet flushing and supplying washing machines.

What types of rainwater harvesting systems does Graf UK offer?

Graf UK offers a variety of systems tailored to residential, commercial, and industrial needs. These include water butts and underground tanks, complete garden systems, and systems for household use, each designed to optimise water collection and use.

How much water can I save with a rainwater harvesting system?

The amount of water you can save depends on factors like roof size and local rainfall. On average, a system can save up to 50% of a household’s mains water consumption, significantly reducing water bills and environmental impact.

Is a rainwater harvesting system suitable for my property?

Most properties can benefit from a rainwater harvesting system. Key considerations include roof area, rainfall in your location, and your water usage needs. Graf UK offers a range of systems adaptable to different property types and sizes. These systems can be installed in both a garden and underneath a driveway if the location of the tank is a constraint for your home.

What is the installation process for a rainwater harvesting system?

Installation involves assessing your site, choosing the right system, and setting up tanks and plumbing. When installing your system you will need to coordinator different M&E contractors on site. As you will need a groundworker to install the tank, a plumber to fit the rainwater pipes to the appliances and an electrician to ensure there’s an electrical supply to the pump.

Are there any government incentives or rebates for installing these systems?

There may be incentives or rebates available depending on your location. Check with local authorities or government programs for any financial assistance or tax credits for rainwater harvesting installations.

What are the ongoing maintenance requirements for the system?

Maintenance is minimal but essential. Regular checks should be conducted to clean filters, inspect tanks for debris, and ensure pumps and pipes are functioning properly. Graf UK provides maintenance guidelines to help keep your system running efficiently.

How much does a rainwater harvesting system cost?

Costs vary based on system size and complexity. Basic systems start at a few hundred pounds, while more comprehensive setups may cost several thousand. Over time, savings on water bills often offset initial costs.

Does the system meet UK regulations and standards?

Yes, all Graf UK systems are designed to comply with UK standards and regulations, including building codes and water quality requirements. This ensures your system is safe, legal, and efficient.

How do I choose the right system for my needs?

Choosing the right system involves assessing your water usage, property size, and budget. Graf UK offers consultation services to help you select the best system for your specific requirements.

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