Using grey water

As long as it is grey (and not black) water, you can reuse some of your water for non-consumption purposes – that means, you can’t use it for drinking, cooking, showering or watering edible plants (fruit tress are ok).

When using grey water, use it over the largest area possible to reduce the impact and build up of any contaminants in your soil. The use of slotted pipes is effective for spreading the water across a larger area, too.If piping grey water onto your garden, it is best to have the pipes underground. This has a number of benefits:

  • No pipes for anyone to trip over or move away from where you want themKids and pets can’t access the pipe and drink the waterWater reaches the roots of your plants instead of possibly running off the soil
  • Any spray won’t land on the leaves of edible plants 
  • There is less spread of any chemicals and bacteria in the water

Remember that grey water can’t be stored for more than 24 hours unless it is being treated before use.Note that you can only use grey water on your property – do not allow if to run off into the street on your neighbour’s property.

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