It is almost inevitable for irrigation emitters to be plugged after a short period of time. Blockage of emitters is one of the most common problems when dealing with micro-irrigation systems. Properly designed and maintained filtration systems generally protect the system from most blockages. Blockages can cause irregular water distribution, which in turn can damage the crop. Our research shows that plugging is random, which means irregular patterns of plugging in emitters. When the plants show excessive stress, it is generally too late to correct the problem. The main causes of plugging include algae, bacterial slime, particles, construction debris, and sediment. With adequate filtration, line flushing, and chemical treatment most blockages can beprevented.
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