Product Ref: GRW110DKSW

Water MDPE Underground Free Delivery

from €3,150.58 ex VAT
(€3,875.21 inc VAT)

Product Description

Klargester AquaHarvest 3100L Domestic Rainwater Harvesting Solution - Roof Area <80m2.

The AquaHarvest rainwater solution is a Direct System suitable for domestic applications.

This system is used where it is impractical to have a header tank, for example in homes that have converted attic spaces and less room. 

Therefore, filtered rainwater is pumped direct from the holding tank to the various appliances.


Why choose a Klargester AquaHarvest Domestic Rainwater Harvesting solution?

  • Suitable for shallow dig applications

  • Fully compliant against EN 16941-1:2018 standard (supersedes EN 8515) for peace of mind

  • Easy to read display panel included as standard, with early fault warnings and water supply status built in

  • Features intelligent pump for total reliability

  • Smart design featuring a calmed inlet at the bottom of the tank to prevent disturbance of any material at surface level.


How It Works

Rainwater directed to the system is firstly filtered by an in line leaf filter, before further filtering on the pump inlet. Final fine filtration is catered for by the inline filter supplied as part of the kit. The ‘intelligent’ pump has the necessary sensors to allow automatic operation when demand is called for by drop of pressure in the system. If the storage tank has a low level of rainwater, there is a small automatic charge of mains water into the tank to ensure the system never runs dry. The main advantage of this system is that rainwater is delivered to the appliances at mains pressure or higher.

Typical Applications

  • WC and Urinal Flushing
  • Irrigation and Landscape Watering
  • Garden Watering
  • Vehicle Washing
  • Domestic Laundry



To ensure your system operates to maximum efficiency, we recommend tried and tested Commissioning by our own British Water and Safe Building trained engineers.
Our unrivalled knowledge means that we are best placed to carry out bespoke assessments to get your system up and running. The commissioning will also provide you with a unique checklist against your system, ensuring your complete peace of mind and reassurance that your system's mechanical and electrical components are in good working order.

Service/maintenance packages are available at separate cost on request.


To help you select the correct SuDS solution to meet your requirements, please get in touch directly to speak with our technical experts.  

Product Specification

  • Product Code: KLAR
  • Fuel Type: Water
  • Material: MDPE
  • Potable: No
  • Shape: Underground
  • Shipping: Free Delivery

Delivery Terms

Kingspan Tanks - Tail-lift deliveries are available for most tanks up to 2,000 Litre capacities for kerbside delivery.
It is the responsibility of the customer to inform us, if off-loading equipment is required.

Klargester Tanks  - All tanks are delivered on 45ft Flat-bed Articulated Trailers, so off-loading equipment on site is necessary.
HIAB off-loading is available at extra cost, if requested.
It is the responsibility of the customer to inform us, if off-loading equipment is required.

Harlequin Tanks  - Tail-lift deliveries are available for most tanks up to 2,500 Litre capacities for kerbside delivery subject to availability.
It is the responsibility of the customer to inform us, if off-loading equipment is required.

tanks.ie undertakes to attempt to fulfill all orders within a maximum of 7 working days of order acceptance, unless advised otherwise. In the event that any order is delayed, tanks.ie will not be responsible for any consequential loss or damage that this delay may cause.

Smaller items (including most accessories and consumables) will normally be despatched by courier.
Larger items (including all storage tanks) will normally be delivered by carrier. 

Please note that for all items delivered by carrier, normally a truck + 40ft trailer, it is the customer's responsibility to ensure adequate vehicular access and to provide suitable offloading equipment, where required. Please notify us, if this might pose a problem and we will endeavour to facilitate your request. 

Returns Information


In accordance with Irish and European Union consumer laws, you have seven days after receipt of order to cancel the order in its entirety or any part thereof, providing the goods are in a re-saleable condition. Should you wish to cancel any order, you must first contact sales@tanks.ie for a ‘Returns Authorisation Number’.

Please call 051 351325 or e-mail sales@tanks.ie 

After the Returns Authorisation Number has been issued, we will make arrangements with you for the goods to be returned. If you wish tanks.ie to arrange the collection of the goods, please note that a carriage and administration charge will apply, which will not exceed 35% of the gross value of the goods.

Upon return of the cancelled goods to tanks.ie and verification that they are in a re-saleable condition, we will refund the value of the goods, less any collection and administration charges, within 28 days.


If you believe that products you have purchased from tanks.ie are defective, please report this immediately to tanks.ie by e-mail sales@tanks.ie or call 051 351325. 

If they are within the manufacturer’s guarantee period, we will arrange with the manufacturer to replace or repair the goods at the manufacturer’s discretion and consistent with their guarantee. 
Where it is necessary to inspect the goods on site and an inspection proves the fault is neither the fault of tanks.ie, nor the product manufacturer, an inspection charge will apply, which will be advised by the manufacturer prior to site inspection.

Please note that where guarantees are available in excess of those required by law, these are provided at the discretion of the product manufacturer and not tanks.ie. Additionally, tanks.ie will not be liable for any claims for consequential damage or loss. 

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