Handbook for Irrigation of Wine Grapes in South Africa

FIGURE 4.36. An example of an irrigation filter that will automatically flush when the up- and downstream pressure differential reaches a pre-set value. Figure 4.37

B

A

FIGURE 4.37. Examples where (A) the suction pipe or (B) the pump is mounted on a float to minimize the risk of sludge entering the irrigation system.

98 CHAPTER 4 – IRRIGATION SYSTEMS

Figure 4.38