Rainwater Harvesting
Rainwater harvesting is the process of collecting, storing, and reusing rainwater for a wide range of domestic and commercial applications. By installing a rainwater harvesting system, you can reduce your reliance on mains water, cut water bills, and lower your environmental impact.
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Benefits of Rainwater Harvesting
Collecting and reusing rainwater provides major environmental and financial advantages.
Environmental Benefits
- Reduces demand on mains water supplies
- Conserves a valuable natural resource
- Helps reduce stormwater runoff and localised flooding
- Lowers the environmental impact of treated water usage
Cost Savings
- Lower water bills by using harvested rainwater for everyday tasks
- Reduce reliance on metered mains water
- Minimise the need for expensive water infrastructure in some settings
What Can Harvested Rainwater Be Used For?
A rainwater harvesting system can supply water for many non-drinking applications, including:
- Flushing toilets
- Washing clothes in washing machines
- Watering gardens and landscaping
- Cleaning driveways and patios
- Washing vehicles and equipment
Even a small-scale system, such as a water butt connected to a downpipe, can significantly reduce mains water use.
How to Collect Rainwater
There are several ways to collect and store rainwater, depending on the size of your property and water usage needs.
Water Butts
A simple, affordable solution for garden irrigation and light domestic use.
Rainwater Harvesting Tanks
Larger above-ground or underground rainwater tanks designed for homes, farms, commercial sites, and industrial premises.
Complete Rainwater Harvesting Systems
Integrated systems with filters, pumps, and controls for properties that want to maximise water reuse.
If you need help choosing the right solution, our team can recommend the best rainwater harvesting tank or system for your application.
Our Range of Rainwater Harvesting Tanks & Systems
We supply a wide selection of rainwater harvesting tanks, filters, and complete systems suitable for domestic, agricultural, and commercial use.
If you don’t see exactly what you need on our website, we may have additional options available – contact us with your requirements and we’ll help you find the right solution.
Learn More About Rainwater Harvesting
Want to see how rainwater harvesting works in practice?
Our manufacturer has created a helpful video explaining the benefits of installing a rainwater harvesting system and how easy it is to get started.
Rainwater Harvesting Tanks
Rainwater Harvesting Accessories
Rainwater Harvesting Information
Rainwater Harvesting Water Tanks. ‘Rainwater harvesting’ is a term used for the collection, storing and distribution of rainwater for a wide range of uses both commercially and domestically.
Collecting water in this way allows the re-use of a valuable resource therefore reducing demand on a mains supply.
Examples of what rainwater can be used for include;
- Flushing toilets
- Washing clothes in washing machines
- Plant watering
- Washing your car
How Do Rainwater Harvesting Water Tanks Work?
Most water tanks for rainwater collection have a number of common features such as;
- An inlet for the rainwater to flow into
- A filter to remove debris
- Overflow
- Outlet
Consequently, the simplest form of rainwater harvesting is to collect rainwater in a Water Butt through connection to an external guttering downpipe. This is an ideal solution in a domestic setting as a Garden Rainwater Tank.
To illustrate how these systems work, Enduramaxx have created a very useful animation of a Rainwater Tank in action.
What types of Rainwater Collection Tanks are there?
Water Butts Typically found in a garden, a water butt is an ideal size for domestic purposes. Primarily designed to connect to residential or outbuilding downpipes, they are easy to set up and install. Rainwater collected by your water butt can be used to water your garden, therefore offering an instant saving on your water bill and reducing your demand on the mains supply.
Above ground Rainwater Tank The most common type of tank for this purpose. The tanks can be sited next to the downpipe/guttering they are collecting water from. A wide range of capacities are available, up to 30,000 Litres. Suitable for domestic and commercial applications, the tanks can also be joined together for additional capacity. Various shapes of tank are available - from rectangular rainwater tank above ground tanks to round tanks. Are you restricted on space and can't find what you are looking for? Get in touch with the dimensions you have here.
Underground Rainwater Tank Useful for when space is limited above ground, an underground storage tank is a great space saver. Ideal to install during a new build development to promote its green credentials. Our range also includes an underground water tank system that only requires a shallow excavation - view here.
Rainwater Tank Systems In the same way as the tanks above, the rainwater systems offer a rainwater storage solution but with the additional benefit of a pumped outlet and filter within the tank itself. As a result, the system comes ready to fit.
What accessories do I need?
Rainwater Tank Filters Without appropriate filtering, leaves and debris can enter a rainwater tank and consequently cause blockages. In addition, dirt can collect at the bottom of the tank. The rainwater tank filters help to remove leaves and debris before it has a chance to enter the tank. These filter kits are ideal for the larger capacity tanks where access for regular cleaning is limited.
Tank Joining Kits Looking for additional capacity? Our tank joining kits will allow a number of tanks to be connected, therefore doubling your rainwater collection capacity.
Additional outlets These outlet kits mean additional water tank outlets can be added where required. This is particularly useful if you wish to add an additional outlet for a tap, as an example.

