2700 Litre Carat Direct Rainwater Harvesting System – Complete Package

£2,095.00 Exc VAT

(£2514.00 Inc VAT)

Shipping 5 – 7 Working Days
Free UK Mainland Delivery

Popular Fittings & Accessories:
6500 Litre Carat Garden Rainwater Harvesting System
+Vehicle Loading Lid - 3.5 Ton
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Product Description

The 2700 Litre Carat Direct Rainwater Harvesting System – Complete Package is designed to go underground and supply water to both home and garden.

Rainwater is collected from the roof of the property and fed into the underground tank via the downpipes. On entry to the tank, the water passes through the filter to prevent any debris from going into the tank. With this system, there is a mains water top-up unit located within the property. This unit supplies mains water to the underground tank when the rainwater level is low. There is a pressure-sensitive pump located in the underground tank, when a valve or tap is opened, water will be pumped under pressure until the valve is closed, allowing the system to repressurise turning the power off to the pump.

Key Benefits

  • Simple & quick to install
  • Submersible pump supplies harvested rainwater on-demand to WCs, washing machines & external taps
  • Mains water back-up unit tops up the water level in the Carat tank when rainwater levels are low, in order to guarantee a continued water supply
  • The quiet & conveniently-sized mains water back-up unit will fit in a kitchen or utility cupboard for very low visual impact
  • Innovative float sensor detection on the mains water back-up unit ensures that the underground tank is kept supplied with mains water but only the amount necessary to maintain supply to toilets and washing machines. This leaves as much volume as possible in the tank to collect rainwater when available

Popular Uses 

  • Flushing Toilets
  • Washing Machines
  • Garden Irrigation
  • Outside garden tap

Specification

  • CARAT tank dome Maxi black, with sealing set DN 100
  • CARAT telescopic dome shaft Mini green, with PE-lid, for pedestrian loading/or vehicle loading
  • CARAT Filter package 3 House, Optimax-Pro filter internal/inflow stilling system/overflow siphon/Spannfix – DN 100
  • Pump package Home Direct Carat
  • Mains water back-up unit
  • Float sensor (connected from mains water back-up unit to the underground tank)

Additional Components Required For Installation (Not supplied)

  • 100mm diameter duct pipe to contain float sensor cable, power cable for pump, also bringing mains water to underground tank as and when required
  • 100mm diameter drainage pipe connected from downpipes to the inlet at the top of the tank (all downpipes brought into one pipe for connection to the filter)
  • 100mm diameter pipe for overflow from the tank to mains drainage network or soakaway

Installation & Commissioning

Installation Guide 

Watch the GRAF Installation video here 

Product Drawing 

Product Specification
Weight 120 kg
Dimensions L 2080 x W 1600 x H 2200 mm
Potable Material

Manufacturer

Delivery and Returns

Shipping costs for standard postcodes within UK Mainland are calculated at checkout when a postcode is entered.

Delivery charges are based on current manufacturer and courier rates. In some cases, delivery costs may be subject to confirmation after an order has been placed due to supplier delivery zones or freight changes. If an additional delivery charge applies, the customer will be notified before the order is dispatched and given the option to proceed or cancel the order for a full refund.

Some areas may incur additional charges, including:

  • Scottish Highlands and Islands

  • Isle of Wight, Channel Islands, Isle of Man, Anglesey, Western Isles, Shetland Islands, Orkney Islands, Isles of Scilly

  • Northern Ireland

  • Republic of Ireland

Additional charges may apply for postcodes in these areas:
AB, BT, CA, CT, DD, DG, EH, FK, G, GY, IM, IV, JE, KA, KW, KY, LD, LL, ML, PA, PH, PO 30–41, SA, SY, TD, TN, TR, ZE

If your postcode is listed above, please contact us before ordering for a shipping quote.

Some products are only available for delivery within England & Wales; this will be stated on the product page. If you are outside this area, please contact us for a quotation.


Delivery Lead Times

  • Refer to individual product pages for expected delivery times.

  • Custom orders may take longer; please enquire before ordering.

  • Items on the same order may be delivered separately due to stock locations.

  • If delivery is delayed, we will notify you via email.


Delivery Method

  • All deliveries are kerbside unless stated otherwise.

  • For larger items, customer offloading may be required.

  • Someone must be available to receive and inspect the goods.

  • Goods may be left in a safe place at the customer’s risk; Online Tank Store cannot accept responsibility once goods are left.

Note: By signing for the goods, you confirm that the outer packaging is intact and free from visible damage. Any visible damage must be noted on the delivery paperwork or the delivery refused.

Scheduled delivery times may be accommodated; please add instructions in the Customer Notes section at checkout.


Missing or Faulty Items

If items are missing or arrive damaged:

  1. Contact us within 48 hours of delivery at [email protected]

  2. Provide:

    • Order number

    • Photos of the goods

    • Brief description of the issue

We may require images for the manufacturer to provide replacements.


Delivery Charges & Returns

  • Ensure the product is the correct size and suitable for your intended use.

  • Standard tanks (no customisation) are returnable but subject to a restocking charge and must be returned in A1 condition. Returns may be expensive due to size and weight; please check before ordering.

  • Failed delivery attempts: After one unsuccessful delivery attempt, items will be returned to the depot, and redelivery charges may apply.

  • Special or custom tanks are non-returnable. If the wrong product is ordered or the item is no longer required, it cannot be returned, and no refund will be issued.

Our full returns and refund policy can be found by clicking here.

It is important to us that the items you order are correct for your needs however, we understand that situations and requirements can change. It can be costly to return an order so please ensure you are certain of your requirements before you order and that you have read the returns policy above for details.

Custom Tank – An order is considered ‘custom’ when a non-standard configuration or colour is requested. Custom orders are not eligible for return so please ensure the product is what you require before ordering. By purchasing, you are agreeing to the above terms.

Product Description

The 2700 Litre Carat Direct Rainwater Harvesting System – Complete Package is designed to go underground and supply water to both home and garden.

Rainwater is collected from the roof of the property and fed into the underground tank via the downpipes. On entry to the tank, the water passes through the filter to prevent any debris from going into the tank. With this system, there is a mains water top-up unit located within the property. This unit supplies mains water to the underground tank when the rainwater level is low. There is a pressure-sensitive pump located in the underground tank, when a valve or tap is opened, water will be pumped under pressure until the valve is closed, allowing the system to repressurise turning the power off to the pump.

Key Benefits

  • Simple & quick to install
  • Submersible pump supplies harvested rainwater on-demand to WCs, washing machines & external taps
  • Mains water back-up unit tops up the water level in the Carat tank when rainwater levels are low, in order to guarantee a continued water supply
  • The quiet & conveniently-sized mains water back-up unit will fit in a kitchen or utility cupboard for very low visual impact
  • Innovative float sensor detection on the mains water back-up unit ensures that the underground tank is kept supplied with mains water but only the amount necessary to maintain supply to toilets and washing machines. This leaves as much volume as possible in the tank to collect rainwater when available

Popular Uses 

  • Flushing Toilets
  • Washing Machines
  • Garden Irrigation
  • Outside garden tap

Specification

  • CARAT tank dome Maxi black, with sealing set DN 100
  • CARAT telescopic dome shaft Mini green, with PE-lid, for pedestrian loading/or vehicle loading
  • CARAT Filter package 3 House, Optimax-Pro filter internal/inflow stilling system/overflow siphon/Spannfix – DN 100
  • Pump package Home Direct Carat
  • Mains water back-up unit
  • Float sensor (connected from mains water back-up unit to the underground tank)

Additional Components Required For Installation (Not supplied)

  • 100mm diameter duct pipe to contain float sensor cable, power cable for pump, also bringing mains water to underground tank as and when required
  • 100mm diameter drainage pipe connected from downpipes to the inlet at the top of the tank (all downpipes brought into one pipe for connection to the filter)
  • 100mm diameter pipe for overflow from the tank to mains drainage network or soakaway

Installation & Commissioning

Installation Guide 

Watch the GRAF Installation video here 

Product Drawing 

Product Specification
Weight 120 kg
Dimensions L 2080 x W 1600 x H 2200 mm
Potable Material

Manufacturer

Delivery and Returns

Shipping costs for standard postcodes within UK Mainland are calculated at checkout when a postcode is entered.

Delivery charges are based on current manufacturer and courier rates. In some cases, delivery costs may be subject to confirmation after an order has been placed due to supplier delivery zones or freight changes. If an additional delivery charge applies, the customer will be notified before the order is dispatched and given the option to proceed or cancel the order for a full refund.

Some areas may incur additional charges, including:

  • Scottish Highlands and Islands

  • Isle of Wight, Channel Islands, Isle of Man, Anglesey, Western Isles, Shetland Islands, Orkney Islands, Isles of Scilly

  • Northern Ireland

  • Republic of Ireland

Additional charges may apply for postcodes in these areas:
AB, BT, CA, CT, DD, DG, EH, FK, G, GY, IM, IV, JE, KA, KW, KY, LD, LL, ML, PA, PH, PO 30–41, SA, SY, TD, TN, TR, ZE

If your postcode is listed above, please contact us before ordering for a shipping quote.

Some products are only available for delivery within England & Wales; this will be stated on the product page. If you are outside this area, please contact us for a quotation.


Delivery Lead Times

  • Refer to individual product pages for expected delivery times.

  • Custom orders may take longer; please enquire before ordering.

  • Items on the same order may be delivered separately due to stock locations.

  • If delivery is delayed, we will notify you via email.


Delivery Method

  • All deliveries are kerbside unless stated otherwise.

  • For larger items, customer offloading may be required.

  • Someone must be available to receive and inspect the goods.

  • Goods may be left in a safe place at the customer’s risk; Online Tank Store cannot accept responsibility once goods are left.

Note: By signing for the goods, you confirm that the outer packaging is intact and free from visible damage. Any visible damage must be noted on the delivery paperwork or the delivery refused.

Scheduled delivery times may be accommodated; please add instructions in the Customer Notes section at checkout.


Missing or Faulty Items

If items are missing or arrive damaged:

  1. Contact us within 48 hours of delivery at [email protected]

  2. Provide:

    • Order number

    • Photos of the goods

    • Brief description of the issue

We may require images for the manufacturer to provide replacements.


Delivery Charges & Returns

  • Ensure the product is the correct size and suitable for your intended use.

  • Standard tanks (no customisation) are returnable but subject to a restocking charge and must be returned in A1 condition. Returns may be expensive due to size and weight; please check before ordering.

  • Failed delivery attempts: After one unsuccessful delivery attempt, items will be returned to the depot, and redelivery charges may apply.

  • Special or custom tanks are non-returnable. If the wrong product is ordered or the item is no longer required, it cannot be returned, and no refund will be issued.

Our full returns and refund policy can be found by clicking here.

It is important to us that the items you order are correct for your needs however, we understand that situations and requirements can change. It can be costly to return an order so please ensure you are certain of your requirements before you order and that you have read the returns policy above for details.

Custom Tank – An order is considered ‘custom’ when a non-standard configuration or colour is requested. Custom orders are not eligible for return so please ensure the product is what you require before ordering. By purchasing, you are agreeing to the above terms.