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Water harvesting is an ancient practice with many modern-day benefits. Whether you are an avid gardener looking to supply your lush garden with additional water or if you simply want to take advantage of the wonderful rainfall Gauteng has recently experienced, here are some benefits to water harvesting. Rainwater and greywater harvesting are the two biggest forms of water harvesting and when installed correctly can save you lots of money and can reduce the frustrations of the current governmental water supply.

What are the benefits of greywater reuse?

Greywater serves to substitute fresh water for specific purposes allowing for water conservation and reducing the amount of fresh water used.

Greywater has been reused for irrigation purposes for many years all over the world and specifically in countries with very similar climatic conditions to South Africa, such as Australia and Europe. Below are just a few of the many benefits of greywater reuse.

  • Less fresh water is used and saves thousands of litres of drinking water. It reduces the impact on natural water resources by reducing water consumption.
  • You can save money on your water bills.
  • Ensure a constant water supply for the garden.
  • Possibly add nutrients from the greywater that are beneficial to plants and soil. Depending on the source, greywater may contain small and varying amounts of nitrogen and phosphorus, which are potential sources of plant nutrients.
  • Reduce the flow to the sewerage system, thereby reducing water treatment costs.
  • The soapy nature of greywater can sometimes act as a pest repellent.

Why rainwater harvesting can be beneficial to you?

  • Collecting and using rainwater to replace municipal water, reduces your water bill.
  • Rainwater can be used for irrigation or indoor non-drinkable supply.
  • For a drinkable option a water filtration system should be installed.
  • Rainwater from a drinkable harvesting system that has been properly filtered and disinfected is some of the best tasting water available.
  • Harvesting rainwater can provide an independent water source in areas when other water sources are unavailable, or where the water quality is unacceptable.

Be on the lookout for other posts on renewable water harvesting to ensure you can continue with your day-to-day, whilst water interruptions and supply shortage looms. Visit our blog at

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