In South Africa, Rainwater Harvesting is a viable means of collecting and storing large volumes of fresh water. This water can then be used to irrigate the garden or, with proper treatment, used to supplement the water supply of a household or office. When you consider that 1m² of roof surface, when hit by 1mm of rainfall, has the potential to yield 1L of water, then it becomes possible to imagine that every property in South Africa has the capacity to capture and store large quantities of water.
Green Balance Consulting designs project specific rainwater harvesting systems that allow for maximum water capture, enabling you to reduce your dependency on the mains water supply. This will reduce your annual water bill and save you money. You can use the formula that appears below to estimate your roofs' potential yield in litres.
(Average yearly rainfall/region)mm X (Area of roof surface)m² = Potential yield in litres
For example: 515 mm (Average yearly rainfall/Coastal Western Cape) x 150 m2* (Area of roof surface) = 77 250 Litres/year
*This is a random roof surface area. Please insert your own roof surface area.
Grey Water Reclamation
Grey Water Reclamation is another way in which the stress placed on South Africa's water supply can be reduced significantly. "Grey water" refers to all water generated from everyday household processes like bathing, showering, and doing laundry. The water that is generated by these processes can be re-used if managed properly. Roughly 35% of the average households' water usage goes to irrigating the garden. Therefore re-using grey water in the garden is an effective alternative to simply allowing it to flow away into the sewer network.
When considering a Grey Water Reclamation system it should be taken into consideration that grey water may not be stored for more than 24hrs according to municipal guidelines. If left standing for long periods of time grey water will begin to fester and produce unwanted odours. Green Balance Consulting overcomes this problem by utilizing innovative green technologies like the Garden ResQ Grey Water System . This system evacuates grey water immediately, negating the need for storage. Green Balance Consulting can design a system that meets local municipal grey water regulations and your needs, allowing you to reuse your grey water in the garden.