Why test water
Many natural waters contain impurities (chemical or biological) that make them directly harmful to crops and equipment. Testing a water sample is important before the water is used for irrigation purposes. Plants vary in their ability to tolerate and use poor quality water; similarly soils vary in their resistance to the effects of poor quality water. A knowledge of the quality of any given water supply, assessed by chemical analysis, is essential in managing this water in an irrigation system.
The accuracy of a water analysis depends upon the sampling method used and the time elapsed between sampling and analysis. By following the simple procedures outlined here, you will be assured of the accuracy of the analysis.

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