NEO rainwater harvesting systems

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Reduce mains water consumption by up to 50% with our strong, lightweight and long-lasting NEO rainwater harvesting systems. 

Rainwater harvesting system in a uk garden
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24/7 access to fresh water for toilets, gardens, washing, and more. 
Reduces your draw on mains water.
Limits the damaging effects of run-off.

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Versatile designs

A range of sizes and storage capacities. 
Diver and garden systems available.  
Shallow dig requirements. 

rainwater harvester water management turnkey solutions
Turnkey solutions

Pre-assembled and easy to install.
Residential and large-scale options.
Ideal for new builds and retrofits.


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Economical option

Low running costs. 
Excellent performance to cost ratio. 
Save money on water bills. 

Inspired by nature

Transparent view of the Rewatec NEO 300E rainwater harvester storage tank

A rainwater harvester is the best way to collect and store rain for a complete range of applications, from single dwellings to commercial projects. 

Rewatec NEO rainwater harvesters are ideal for the collection of rainwater from any roof type. Installed underground, they can easily be configured for seasonal use, giving you access to abundant and free rainwater for any application that doesn't require drinking water for use. 

Rewatec underground rainwater harvesters can reduce drinking water consumption by up to 50% for commercial rainwater harvesting and community rainwater harvesting applications.


Example applications 

  • homes 
  • gardens 
  • offices  
  • schools 
  • commercial 
  • environmental projects 


How do rainwater harvesters work? 


Rainwater is first collected by rain gutters (for sloped roofs) or a drain (for flat roofs). It then reaches a primary filter that prevents leaves, insects, and other debris from entering the system. Water that passes through the filter flows into a recovery tank. 

NEO rainwater harvester connected to a house

Collected rainwater is stored in a leak-proof tank that is installed below ground on the property. 

The rainwater tank is equipped with a circulation system that prevents water stagnation. During a downpour, this system evacuates liquid at the bottom of the tank to ensure that only the freshest water remains. 

Rainwater use 

Using harvested rainwater is simple. A specially designed pump directs stored water through a micro-filter that removes any small particles, then provides optimal pressure to supply appliances, plumbing fixtures, and building systems. 

If no rainwater is available in the storage tank, all appliances are automatically and reliably supplied from the regular water system 


What is the need for rainwater harvesting?

The average person in the UK uses approximately 142 L of water daily. This water is treated and distributed by costly municipal systems, and yet only a small fraction of it is used for functions that actually require potable water. 

The scale of waste is enormous - and so is the opportunity it gives us to protect precious drinking water supplies by making better use of rain.  

Pie chart Rainwater Harvester



Uses for rainwater

Harvested rainwater can be used in countless ways. Some of the more common uses include: 

  • toilets and urinals 
  • washing machines 
  • washing vehicles 
  • watering gardens and irrigation 
  • filling pools and spas 
  • cleaning roads and pavements 
  • hosepipes 
  • livestock 

NEO rainwater tank maintenance 

Protect your investment in your Rewatec NEO rainwater harvesting system by having it regularly inspected by a qualified service professional. 

Rewatec NEO rainwater harvester 1,500L

When your service provider visits your property to inspect your system, they should: 

  • check for cracks and leaks in the tank  
  • clean filters 
  • keep and update maintenance records for your system 
  • explain any areas of concern and recommend next steps 

We stand by our products 

Rewatec 10 year warranty

For over 50 years, we have proudly developed sustainable and long-lasting products that make a real difference for our customers, our professional partners, and, above all, our planet. 

Our experience in the industry allows us to give you a 10-year warranty for all of our Rewatec NEO rainwater harvesting systems. 

Training for professionals

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​​​​​​At Premier Tech we provide a full range of training programmes to fully meet the requirements of our professional partners. If you require product functionality guidance or a more detailed training course for installations, we can provide a solution to meet your needs.   

Contact us 

Available products

A full range of rainwater harvesting system sizes (1,500 litres to 7,100 litres) are available to suit domestic and commercial applications, based upon the garden size, roof area and, if applicable, the number of people in the household or building (PE).  

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