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7500 Litre Rain Backup in a Box System

7500 Litre Rain Backup in a Box System

7500 litre Complete Rainwater Harvesting system above ground for house and garden

More details...


£ 1,941.34

Tax excluded

Above Ground Domestic Rainwater System 7500 litre DAK2 for house and garden. The Balmoral surface mounted rainwater storage system is supplied as a kit for horticultural, agricultural, garden and limited domestic use - eg toilet flushing.

The graphic image above shows the main components of the DAK2 System and a schematic layout for a simple domestic and garden application. The item marked with a*is the Rain Backup in a Box®. This 12v automated valve will trickle mains water into the tank when it is very low due to sustained drought to allow the connected domestic appliances (e.g. toilet) to work. The pipework is shown for illustration purposes and will require insulation and correct installation so that no cross contamination can occur between the rainwater and mains water.

Why buy this system?

  • Above ground location so no excavation required
  • Filtered rainwater with built in overflow and inlet calming
  • Mains water back up in case of extended drought
  • Can be used to feed rainwater to a toilet cistern
  • Powerful pressure sensitive pump for immediate delivery to the taps and appliances
  • Trusted manufacturer of single piece tanks

This kit will enable you to collect, filter, store and distribute rainwater for use in the house or in the garden. Above ground tanks do not keep water at a low stable temperature in the same way as underground tanks but with average rainfall in the UK, the water will be regularly refreshed. The water can be used for flushing toilets, power-washing, garden irrigation and outdoor cleaning jobs. Above ground tanks can not be used during periods of prolonged deep freezing.

More about the tank

Balmoral, the trusted British brand, is a company that designs and manufactures rainwater storage tanks in the UK using the highly efficient rotational moulding process.

Rotational moulding is a process ideally suited to producing hollow plastic products. By using additional post-moulding operations, complex components can be produced enabling the process to compete effectively with other moulding and extrusion practices. Rotational moulding differs from other processing methods in that the heating, melting, shaping, and cooling stages all occur after the polymer is placed in the mould, therefore no external pressure is applied during forming. This provides the following advantages:

  • Economically produced large products
  • Minimum design constraints
  • Very low residual stresses
  • No polymer weld lines

The tanks have been rigorously tested to comply with the requirements of the United Kingdom Water Byelaws and Regulations when correctly installed.

About the pump

Rainwater Pump - HydroForce 800w submersible power pump. All the benefits of the new reliable UK manufactured HydroForce with a built in pressure switch and dry run protection.

Rainwater harvesting pump Enviro 1100w

The all new HydroForce pump now has even more failsafe features:

  • The internal electronics and PCB of the pump are now completely encapsulated in resin - so there is no chance of moisture ingress.
  • The pressure switch has been upgraded for faster response times.
  • The body moulding has been revised to prevent the effects of both positive and negative water pressure.
  • The manufacturer's warranty is now extended to 2 years from date of purchase. 
  • Dry run sensor
  • High volume 1 litre inline filter not included.
  • Can be located in or out of the tank has collated the components that are needed to divert water to the tank, filter out debris and retrieve it for uses from power washing to irrigation.

What comes with this kit?

Components list for Balmoral Tank 7500 litre DAK2
Product Code Product Description
NPW7500 Tank 7500 litres
3P-4000260 Uno Overflow Syphon
RWH-BUB01 Automated mains drip feed with tundish
RWH-HYD03FL HydroForce 800w Submersible pump
3P-2000700 Rainus Downpipe Filter
Delivery Haulage, UK mainland included (Highlands & Islands on request)
BWST-V7500-DAK2 Complete above ground kit for garden and limited domestic use

LIFTING EQUIPMENT REQUIRED ON SITE FOR DELIVERY OF THIS ITEM. Since mid 2011 delivery has been by 55 foot articulated lorry. Please ensure your approach roads are straight and wide. Thank you.

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