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Chemical Precipitate Clogging ofMicroirrigation SystemsWater quality levels of concern:• Calcium: pH > 7.5 and 2.0 meq/l (120ppm) of bicarbonate• Iron: pH > 4.0 and 0.5 ppm iron

Rick Massa, Manager Orland Unit Water Users' Association

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Page 1: Microirrigation Maintenance& Chemig
Page 5 and 6: Clogging of Microirrigation Systems
Page 14: Clogging of Microirrigation Systems
Page 19 and 20: Dealing with Iron Precipitation:1.
Page 21: Clogging of Microirrigation Systems
Page 28: Test for chlorine using a pool / sp
Page 32 and 33: Flushing• Silts and clay particle
Page 36 and 37: Chemigation Uniformity inDrip Irrig
Page 38: Uniform ChemigationFirst, it is imp
Page 62: Uniform ChemigationIt takes at leas
Page 66 and 67:
Uniform ChemigationThe easiest way
Page 68 and 69:
Chemigation uniformity in a drip la
Page 70 and 71:
Water / chemical travel times throu
Page 72 and 73:
Chemigation Uniformity in DripIrrig

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