Countdown to Cape Town’s Day Zero: 71 Days to go

31 Jan 2018


Its 71 days before Cape Town hits #Day Zero which is currently scheduled for 12 April 2017. Grey water is going to play a critical role in the Beat Day Zero campaign.

If and when Day Zero comes ,water taps are set to run dry in South Africa’s second largest city with a population of four million.

There is still small chance for Cape Town to beat Day Zero if the city’s residence drastically reduce their water usage and it gets some rain. Another factor that can push back Day Zero  is usage grey water.

What is grey water and where and how can it be used safely?

Here folllows a definition from the City of Cape Town:

What is it?

  • Greywater is defined as water from baths, showers and hand basins.
  • Wastewater discharged from kitchen sinks and washing machines (except if environmentally friendly laundry detergents are used) is excluded due to its high solid content and the negative impact of softeners and other
    undesirable chemicals on the environment.

Safe Use

  • Gardens consume between 30% and 50% of all domestic water used.
  • Greywater can be successfully used for garden irrigation and toilet flushing.


There are many greywater systems available on the market. Some of these systems are very economical and easy to install.

A greywater system can:

  • Save valuable potable water
  • Save you money and
  • Relieve the strain on our natural environment

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