Changes

The Waggon Wheel system was developed in South Africa by Dr Gerrie Albertse in 1995. It has been used to grow vegetables and grapes in the very harsh conditions of arid South Africa. The Waggon Wheel irrigation system uses a circular arrangement of 6 drip lines radiating out from the central reservoir drum (210 litres) — hence the name Waggon Wheel. The length of each drip line is 6 m.

A drum system covering 5 beds each 1 m wide and 15 m long can be used to grow 250 plants (tomato, egg plant and similar plants requiring a spacing of 60 cm along the plant rows); 500 plants (spinach, cabbage, kale, pepper and similar plants requiring a spacing of 30 cm along the plant rows); or 1,500 plants (onion, carrot and similar plants requiring a spacing of 10 cm). The drum system also offers water storage and control through a control valve, making it possible to fill the drum for irrigating at another time.