07 February 2012
 
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Domestic Rain Water Harvesting

An underground storage tank connected to the roof water guttering system. This filters out leaves and debris, collects the rain water, and then pumps the water back on demand to non potable applications.

From 3000 litre small domestic to 1,000,000 litre capacity large commercial and agricultural applications.

In a domestic system this would be for:

  • Toilet flushing
  • Washing machines
  • Garden watering systems
  • Car washing

A typical below ground rainwater harvesting system comprises of the following components:

envireau packeged components
KingspanWater polyethylene Underground Storage Tank suitable for 60m to 150m roof areas. Please note the ENV200KSW is manufactured in GRP. Suitable for pea shingle back fill in dry site conditions. (Note: for larger roof area suitable tanks are available)

Other Fixture & Fittings

  • Depth Sensor lies on the bottom of the tank. It measures depth of the water above it and will relay the information back to the main control panel. This activates the mains water supply when required and disables the pump when water levels in the tank are running low.
  • Solenoid Valve (regulates the supply of mains water in the direct system)
  • Tundish (provides the mandatory air gap in the direct system)
Internal Self Cleaning Rainwater Filter
Stainless Steel Multi-stage Submersible Pump with Floating Filter
Envireau Control and Display Panel (controls the stopping and starting of the pump)
50m Cable Length are fixed on all units
Pedestrian Duty Manhole Cover

We can also supply our customers with a simple above ground system for garden irrigation. This would be one of our rainwater butts plumbed into your roof water down pipe. We sell varying capacity butts from 100 to 900 litres.

outdoor tank

Depending on your water usage requirements, roof collection area and geographical location, we can design a rain water harvesting system for you.


We supply (and/or install) below and above ground rainwater harvesting systems tailored exactly to your needs.

Have a Question? Need More Information?

If you would like to learn more about Domestic Rain Water Harvesting, have a question you'd like to ask us or wish us to call you back by phone, please Click Here to complete our information request form.

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