The orifices in the drip lines or the emitters emit water to the soil. The emitters allow only the discharge of few liters or gallons per hour. Because the emitters have small

orifices, these can be easily obstructed with clogging agents (physical, chemical, and biological). The obstruction can reduce degree of emission, the uniformity of water distribution, and therefore, this can reduce plant growth. Once the system has been obstructed, it becomes more difficult to restore the normal water flow. Therefore, we must prevent the obstructions in the filters, laterals, and emitters. The clogging can be prevented with a good maintenance and periodic service of the system. To operate and to maintain a drip irrigation system in a good working condition, the following considerations are important for an adequate operation [1, 2, 3, 4]:

1.Pay strict attention to the filtration and flushing operation. 2.Maintain an adequate operating pressure in the main, sub main, and lateral

lines. 3.Flushing and periodic inspection of the drip irrigation system.