Kitchen greywater, however, (and dishwasher water) is not to be reused as this can contain oil, fats and food scraps, which do not break down easily and can easily clog irrigation filters and pipes. This means that householders can easily reuse greywater from the bathroom/s (shower, handbasins and bath) and the laundry.
The average Australian household uses about 800 L per day for both inside and outside use. That’s 300 kL of water per year, and 40% of that use is on gardens. Typical values for the volume of greywater produced is 100 litres per person per day, so reusing greywater into the garden could give you an extra 100 kilolitres (100,000 L) of free water a year.
Reusing laundry and bathroom wastewater on your garden is just another way of moving towards a more sustainable lifestyle.
What’s more, it’s a practical step that is just as easily applied in the suburbs as it is in the country.