SKU: HG4500 Harlequin

Postcodes within M25 will incur an additional £150
excess charge. which will need paying before dispatch

4 weeks lead time 

Delivery to Kerbside via 45 ft lorry on tanks over 2500 litre (Customer responsible to offload on all tanks)

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£2,886.00 (excl. VAT)
£3,463.20 (incl. VAT)

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Harlequin HG4500 Hydrostore Home Harvest – 4500 Litres Rainwater Storage System

W Water Free delivery available Price Promise Guarantee Business to Business Finance Available

Product Specification

Capacity & Dimensions

Weight260 kg
Capacity4500 litres (989 gallons)
Footprint2165mm x 2165mm

Additional Information

Fluid Type




HydroStore-ST 4500 litre ‘Home Harvest Gravity’ rainwater harvesting system consists of the HydroStore tank (including internal components), the ‘Rain Director’ rainwater distribution unit and the header tank.

Rainwater is pumped to a header tank where gravity distributes it to the required water appliances. This minimises pump on/off cycling, reducing electrical cost and wear on the pump. The system also ensures that the header tank is replenished with mains water once the stored rainwater is exhausted.


  • High impact strength at low temperatures
  • Calmed inlet reduces turbulence to tank sediment, improving water quality to property
  • Pressure-sensitive pump (turns off if no demand), dry-run protected (turns off if no water detected) for extended service life
  • Pump outlet capable of delivering 2500ltr/hour, nominal 35m head, and 3.5 bar pressure to guarantee reliable, constant and efficient supply
  • Stress free mouldings provide extra strength
  • Lightweight, easy to handle
  • Integrated handling points
  • Corrosion resistant
  • Low maintenance
  • UV protected
  • Recyclable polyethylene

Inlet invert: 830mm

Inlet overflow: 900mm

Pipework fitting: Ø110mm

    • Located inside the house
    • Easy access to all electro-mechanical parts
    • No pump in the tank
    • Simpler installation
    • Auto mains water backup
    • No loss of service, does not refill tank from mains so less pipework and wasted water
    • Fully insulated cover
    • Quiet operation
    • 10 Litre break tank with air gap
    • Meets water regulations

2 Filter assembly

  • Lift out 0.2mm stainless steel filter
  • Improved water quality
  • Self cleaning filter
  • Low maintenance
  • Located within tank
  • Saves space, easier installation and access
  • Overflow skimmer with U-bend overflow
  • Improved water quality
  • 90% Water yield
  • Saves more water


3 Calmed inlet

  • Minimises disturbance of settled matter
  • Improved water quality


4 Guided suction pipe

  • Unique precision guided system
  • Ensures that water is taken only from the cleanest part of the tank
  • Improved water quality
  • Additional filter on suction inlet
  • Improved water quality
  • Precisely locates the tank low level sensor
  • Minimises wasted water


5 Telescopic turret

  • Adjustable height
  • Minimises installation depth
  • Allows a neat flush finish with the ground


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