Rainbank our Rainwater Harvesting System. Designed, Manufactured & Installed by O’Reilly Oakstown

Rainwater Harvesting System

Diagram labels explained below

1 :: 8000 Litre Tank

2 :: Debris Filter

3 :: Water Pump with Floating Intake

4 :: Automatic Pressure Switch

5 :: Calmed Inlet

6 :: Header Tank

7 :: Mains water for top-up

8 :: Multisiphon

Why use a Rainwater Harvesting System

In the home the average person uses around 150 litres of water every day. Around 50% of this does not need to be from the mains water supply. We can use Rainwater for the following:

  • Toilet Flushing
  • Garden Watering
  • Landscape Irrigation
  • Vehicle Washing
  • Domestic Laundry
  • Water for Livestock

Other Advantages Include:

  • Makes use of a natural resource
  • No chemicals such as fluoride and chlorine, and no dissolved salts and minerals from the soil.
  • Promotes both water and energy conservation


  • 8000 litre, concrete tank, installed by our truck and technician

  • It helps the environment by taking pressure off local water supplies

  • Soft water reduces detergent use for cleaning clothes

  • Limits build-up of limescale on household machines

  • Minimises salt use in water softening systems – friendlier to sewage systems

  • Better for watering gardens

  • Reduces costs when metering is introduced

Need more Information or Technical Specifications regarding our Rainwater Harvesting System?