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Commercial and Agricultural Rainwater Harvesting
The main components of a commercial rainwater harvesting system are similar to a domestic rainwater harvesting system, the main difference is the size of the item and the ability to manage high flow.
We supply a range of commercial kits which are simple plug and play devices, great for barns and warehouses. If you're using more than 100 litres/day a system like this could be for you.
On a bigger site we suggest using the rainwater harvesting calculator and selecting the components based on the outcome. Its worth noting that biggest is not always best. A good system should optimise between roof area (supply) and usage (demand) ensuring there is a good turnover of rainwater. Use this blog as a useful guide for a commercial rainwater harvesting overview.

100mm Underground Tank Grommet Seal
£9.99
100mm Underground Tank Grommet Seal for GRAF underground tanks.
1500l Above Ground Rainwater Harvesting System
£859.00
This new water tank combines excellent German innovative design and quality construction with a simple finish - perfect for the outdoor space. This tank has a huge 1500l storage capacity with a minimal footprint (120 x80cm) This is a very solid construction dissimilar to other cheaper thin walled tanks available online. The thick opaque plasti...

3P Rainwater Filter Collector Universal for Downpipes
£53.99 £59.00
3P Rainwater Filter Collector Universal 3P Technik make high quality rainwater harvesting accessories, and this is a great addition to their range of products. It is a downpipe diverter which thoroughly filters the water which passes through it. This will ensure that the water in your water butt is as pure as possible. Like all diverters once...

Carat XXL underground tank
£7,465.02
The Carat XXL underground tank has been specially developed for rainwater harvesting and for use as a retention cistern, firefighting water tank, process water tank and septic tank. Features Flexibility and stability are perfectly combined Suitable for vehicle loading / lorry loading Secure investment thanks to the market leading 15-year warr...

Carat/Platin Calmed inlet and Siphon overflow package
£179.00
GRAF PLATIN / CARAT Calmed inlet and Siphon overflow package. This set is used to supplement underground tanks and consists of: - Calmed inlet which reduces disturbance of the settled sediment on the tank base - Siphon overflow which allows the tank to overflow to a drainage network or soakaway and prevents odours entering the tank

Coffin Water Tank 114l, 227l, 318l and 454l
£309.00
The coffin tanks are designed with easy installation in mind. These tanks contain a full installation package, which comes complete with fittings and instructions, giving you all the tools you need to maintain your own home with ease. The Coffin Water Tank comes with a fitting kit, which includes: Polytank Byelaw 30 kit and fitting instructions...

Commercial Rainwater Harvesting Filter - 1 stage -110mm - PF-200m2
£249.00
A Rainwater filter for installation in rainwater tanks. Due to the inclined angle of the filter sieve and its very smooth surface structure the dirt is rinsed into the sewer. Filter cartridge mesh is stainless steel within plastic housing. Optional 3P Back-washing Device. The 3P Patronen Filter is ideally suited for use in conjunction with a 3P ...

Commercial Rainwater Harvesting Filter - 1 stage - 110mm CF -150m2
£219.00
*The product has been changed from Blue to Black* 3P Technik’s smallest rainwater filter for installation within rainwater tanks. The 3P Compact Filter is ideal where there is little room and no height difference available between inlet and outlet. Optional 3P Back-washing Device. The 3P Compact Filter is ideally suited for use in conjunction wi...

Commercial Rainwater Harvesting Filter - 2 stage - 110-160mm TF - 800m2
£659.00
Rainwater filter for large roof areas including commercial, agricultural and industrial use. The Twin Filter can be installed in chambers underground or directly on the wall kept frost free. Usually installed in standard 1000mm manholes. The filter could also be pre-installed in chambers prior to delivery to site. Due to its two step cleaning sy...

Commercial Rainwater Harvesting Filter - 2 stage - 110mm VF1 - 450m2
£289.00
Rainwater filter for installation before a rainwater storage tank in the ground. Also often used in river intake systems as the filter is self-cleaning. The VF1 Rainwater Harvesting filter has a tried and tested two step cleaning process within it and is highly efficient independent of flow rates. Due to the steeply inclined filter inserts, dirt...

Commercial Rainwater Harvesting Filter - 2 stage - 110mm ZF -200m2
£259.00
Rainwater filter for installation in rainwater tanks. Two step cleaning system. The first coarse filter mesh protects the second, finer mesh by removing larger leaves and particles. Optional 3P Back-washing Device. The 3P Zisternen Filter is ideally suited for use in conjunction with a 3P Overflow Siphon and the 3P Calmed Inlet. This package is ...

DAB Divertron 900X with 1m Floating Intake
£559.00
Ideal for pumping rainwater from above-ground or underground rainwater tanks. Install in the tank and pump the water from the cleanest part of the tank. The DAB Divertron 900X also known as a Leader Divertron 900X is a high quality multi-stage DAB submersible pump with 3 impellers and electronic flow control (i.e. the pump will automatically pum...

Divertron 650 Mesh Intake
£449.00
The DAB Divertron 650M also known as a Leader Divertron 650 is a high quality multi-stage DAB submersible pump with 3 impellers and electronic flow control (i.e. the pump will automatically pump on demand). The electronic flow control of the DAB Divertron 650 pump responds to the pressure in the outlet delivery pipe. As the user draws water by o...

Divertron 650 Mesh Intake with Float Switch
£459.00
The DAB Divertron 650M also known as a Leader Divertron 650 is a high quality multi-stage DAB submersible pump with 3 impellers and electronic flow control (i.e. the pump will automatically pump on demand). The electronic flow control of the DAB Divertron 650 pump responds to the pressure in the outlet delivery pipe. As the user draws water by o...

Divertron 650X Submersible Water Pump
£479.00
The DAB Divertron 650X also known as a Leader Divertron 650X is a high quality multi-stage DAB submersible pump with 3 impellers and electronic flow control (i.e. the pump will automatically pump on demand). The electronic flow control of the DAB Divertron 9650 pump responds to the pressure in the outlet delivery pipe. As the user draws water by...