“We never know the worth of water ‘til the well runs dry.” - Thomas Fuller (17th century English historian)
South Africa has over recent years experienced severe drought in most parts of the country with the Western Cape and particularly Cape Town currently in dire straits. Scientists fear this is the face of things to come and they recommend we drastically need to rethink how we manage this scarce, life sustaining resource.
Important facts about SA’s water situation:
1. South Africa gets most of its water from rainfall.
2. SA’s rainfall, at 490mm per year, is half the world average.
3. Low inputs and large population make SA more water scarce than Namibia.
4. A growing economy needs water and this will be met in an increasingly uncertain, volatile and warmer climate.
5. A two-degree increase in global temperatures means a four degree increase for South Africa.
6. Less rain is predicted in the western half of the country and potentially more intense flood events in the east.
7. National demand is projected to increase by 32% (to 17 700 million m3) by 2030 due to population growth and industrial development. This is beyond the limit we can safely allocate.
“Water runs through our every aspiration as a society.” - Kader Asmal (professor of human rights & SA politician)
How you can help:
How to use less water:
Water doesn’t just come from the tap – it takes a long, complicated journey to reach consumers. Together we can reduce the impact we have on this precious resource.
In the garden:
WWF South Africa is asking staff to bring their own (maximum 2-litre) water supply to work on 29 November 2017. All taps and urns will be off limits for the day outside of an hour’s reprieve from 12 noon to 1pm.
Statistics show that flushing toilets are currently the biggest consumer of potable water in the workplace – and so staff will also be encouraged to make use of “permission cubicles” where they can let the yellow mellow in good conscience.
This symbolic ‘’watershed moment’’ is to drive much-needed awareness that we cannot continue to leave our water-saving habits at home! We need to apply them in our offices, our businesses, our malls and other public places if we are to get through the drought together.
In the shop:
How to do a water audit:
1. Find your water meter and monitor it when all water taps are switched off to check that you do not have water leaks. Check for water leaks: dripping taps, toilets, irrigation systems, etc and signs of damp such as unexpectedly lush green patches outside and signs of damp in walls.
2. Check your water usage:
2.1 Record your meter readings on a daily basis to get an indication of your baseline use of water for cooking, cleaning, washing, flushing the toilet etc. Compare these readings with days when you use more water for the garden, washing the car, filling the pool etc.
2.2 To get an idea of where homes use water, a typical mid to high income household has the following breakdown of water use in the home: cooking, washing dishes and drinking 14%, washing machine 17%, baths and showers 32%, toilets 37%. Of the total water used on properties with gardens, 46% is typically used in the garden.
2.3 Understand your water account and the tariff structure. Households get certain kilolitres of free water per month. Thereafter water is charged in a stepped tariff structure. Note that the waste water (sewage) fee that you pay is linked directly to the amount of water you use. So by reducing your water consumption you get the double benefit of reduced water and reduced sewage fees.
3. Look at the options you have to collect rainwater or groundwater. A return on investment calculation will give you a good indication of how the savings on water tariffs can offset or at least subsidize the cost of infrastructure such as a rain tank, well point, borehole, dam etc. Collecting rain or groundwater can provide you with a level of independence during times of water shortages.
4. Reuse your greywater. Grey water is made up of bath, shower, washing machine water and general rinse water. Typically it is not advisable to use dish washing water as the fat content is damaging to plant life. Dish washing water usually gets added to the sewage system which is called black water. An average household (family of 4) typically uses between 200-300l of reusable water per day. The average suburban garden can account for as much as 46% of domestic water consumption, so using grey water in the garden can significantly reduce your water consumption.