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Rainwater harvesting systems installation specialists

Rainwater harvesting in the UK

Water is becoming a valuable commodity in the UK.  Our climate makes the British Isles an ideal place to make the most of water from rainwater harvesting.  Rainwater harvesting is the collection of rain in a water tank during rainfall for use at a later date.  This will reduce your water usage and save you money by reducing your water bill.

Rainwater Harvesting Carat Silentio Package We have a series of really solid water harvesting solutions from GRAF.  Backed up with 10 year warranties, these tanks offer impressive durability. GRAF rainwater harvesting tanks are perfect for running washing machines, sprinklers, garden hoses and toilets.

Flushing with rainwater

When using rainwater for toilets you will need a header tank to provide pressure for the water to flow down to the toilet.  The rainwater is pumped up to the header tank from the main storage tank in order to provide a gravity feed. To find the pressure that this header tank will provide there is a simple rule of thumb.  For every 10 metres of height, the tank will provide 1 bar of pressure or 14.5 PSI.

Boosting rainwater pressure

Break tanks are similar but they are used alongside a water booster pump.  The pump provides all of the pressure required by the premises, so the pump and tank don’t need to be positioned at a higher point in the building.  Used in conjunction with a rainwater harvesting system, these can provide water to appliances from ground level.

A booster pump for rainwater combined with a pressure control switch provides water when you need it.  The switch detects when pressure is required from an appliance and then turns the pump on as needed!

Rainwater Harvesting

Different rainwater harvesting systems

There are many different rainwater collection products on the market.  From a water butt to a fully automated underground rainwater harvesting system, they can be integrated into existing plumbing.   Able to switch when needed from the rainwater tank to the mains water supply when the tank is empty. 

We can tailor our product selection to meet your requirements using our wide range of products.  Choose from our above and underground tanks connected to booster pumps and automatic switchover pump systems.  See our Rainwater Harvesting product menu for details of our complete systems and ancillaries.

DIY rainwater harvesting

You can make up your own system using any combination of products, including our above or below-ground water storage tanks coupled with a booster pump.  We also supply onward plumbing for taps, hoses and irrigation.  We cover both domestic and commercial installs of above and underground rainwater tanks.

It’s important to note that rainwater harvesting systems aren’t built to replace your mains drinking water.  As the water is untreated rainwater it can contain pollutants from the atmosphere and particles.  This is in part because of how clouds form by water condensing around small particles in the air.  Those particles that the clouds form around fall down with the rain and they can be harmful to ingest.


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Rainwater harvesting installs and services

With a host of qualified engineers and technicians, we can assess your site for installation of a rainwater harvesting system. With quality products from Harlequin and GRAF we can assure you our installs will be reliable and swift.

Call or enquire today for hassle-free booking of an assessment and quotation of your project.

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Carat S rainwater harvesting system

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