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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.

Rainwater Harvesting Calmed Inlet
£23.99
When harvesting rainwater, it is important to filter the water before it reaches the water storage tank. However, very small particles such as pollen and oil will often go through your filter mesh and into your storage tank. This causes your water to sour and the particles in the tank to build up over time. Particles heavier than water (such as ...

Rainwater Harvesting Tank 2,000 - 25,000 litre capacity
£509.00
These above ground water tanks provide value for money, high capacity storage with absolutely no compromise on quality. This is a robust, heavy duty, industrial strength product and is manufactured according to the latest rigorous ISO 9001:2015 quality control standards. Rotationally moulded from high quality Medium Density Polyethylene (MDPE)....

Regendieb Original Selfcleaning Rainwater Filter and Rain Diverter - downpipes
£69.00
This is the Graf (Garantia) Regendieb (Rain thief) Self cleaning circular downpipe filter which showcases simple and innovative German design. This represents a step change in rainwater harvesting diverters since the diverter filters leaves and other contaminants whilst capturing the majority of rainwater. This principle is shown in image 2. ...

Regendieb Pro Rainwater Harvesting Self Cleaning Filter
£89.00
This is GRAF self cleaning circular downpipe filter showcases innovative German design. This represents a step change in rainwater harvesting diverters since the diverter filters leaves and other contaminants whilst capturing the majority of rainwater. This principle is shown in image 1. The downpipe filter is supplied with an outlet adaptor a...

Stainless Steel 68mm downpipe fine mesh basket inlet filter
£39.00
Limited offer: Buy one item from the Prestige Water range and receive 10% off a second prestige item. (Lower priced item will be discounted). The housing and mesh are made from high grade stainless steel materials. The housing is extremely solid and suitable for heavy use. The filter is ideal for harvesting rain water to feed live stock, water p...

Stainless Steel IBC fine mesh 110mm basket inlet lid filter
£99.00
Limited offer: Buy one item from the Prestige Water range and receive 10% off a second prestige item. (Lower priced item will be discounted). Prestige Water IBC fine mesh basket filter developed for commercial, farming and irrigation applications to remove debris from rain water and other liquids prior to entering the IBC or other style of liqui...

Stainless Steel IBC fine mesh 110mm tube well filter
£219.00
Limited offer: Buy one item from the Prestige Water range and receive 10% off a second prestige item. (Lower priced item will be discounted). Prestige Water IBC tube well filter developed for commercial, farming and irrigation applications to remove debris from rain water and other liquids. Whilst the IBC inlet filter works with the input flow ...

Steelpumps Automatic Submersible Cleanwater Pump - B Series
£629.00
Steelpumps Automatic Submersible Cleanwater Pump - B Series for permanent installations Self priming centrifugal jet pump with or without electronic pressure control, 230V AC 50hz. For submerged, enclosed or surface mounting. Automatic version includes pressure control, anti-blocking system, leak detection, and dry run protection with automa...

Tank Level Warning Alarm Kit 230V
£129.00
The 3P RCALM Series Display Panels provide a reliable low water level warning for water tanks. Alternatively float switch wiring can be reversed on the RCALM 1 and 2 Series panels to provide a high level warning instead. Choose from a visible warning (light), and optional audible (repeating buzzer) warning. Options available for volt-free output...

Tank Level Warning Alarm Kit 24V
£229.00
The 3P RCALM Series Display Panels provide a reliable low water level warning for water tanks. Alternatively float switch wiring can be reversed on the RCALM 1 and 2 Series panels to provide a high level warning instead. Choose from a visible warning (light), and optional audible (repeating buzzer) warning. Options available for volt-free output...

Tank Level Warning Alarm Kit with Battery Back up optional float and cable
£249.00
This simple to install sewage pumping station high-level alarm unit is designed for audible/visual alarm of pump plant failure. It features a 90dB/1m alarm and LED warning light, the alarm also comes complete with a battery backup in case of mains power failure. The Float switch comes with 10m of cable. Tank Level Warning Alarm Kit with Bat...

TCS9 Series Pump Controller/Timer
£209.00
Works with float switches and level switches Timed operation with 7 day scheduling High load capacity 20A Manual over-ride of timer function Control of Pumps, Solenoids and Motorised Valves The TCS9 Time Controlled Level Switch is designed for use with tank level control applications such as the filling or emptying of a tank that is being cont...

Telescopic Extension for VF1 and Garden Filters
£99.00
The Telescopic Extension Tube from 3P Technik extends the height of a selection of their Rainwater Harvesting Filters from a minimum of 250mm to up to 750mm. It works with: 1000595 - VF1 Filter, 1000592 - VF1 Combi Filter, 1000630 - Retention Filter, and 1000600 - Garden Filters for underground installation Multiple Extension Tubes can be conn...

Triplo 700 litre Rainwater Harvesting tank
£339.00
The new Rainwater Harvesters are strong, durable and available in a choice of colours. Manufactured from UV stabilised LLDPE (linear low density polyethylene), The new Rainwater Harvester should not degrade over time. This is a very solid construction dissimilar to other cheaper thin walled tanks available online. Learn more about the Filter Col...

Visible ball rain water and tank level indicator
£169.00
This clever yet simple device allows the level in a tank to be visually inspected at a distance. Unlike many water level indicators which require being close to the tank the highly visible ball can be seen at some distance, making inspection a quicker task. The Innovative uni-ball joint will suit any tank installation regardless of roof angle....