Step 4 of 6 - calibrating your knapsack sprayer for pesticide dose and spray mix/water volume
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This video will demonstrate keeping the nozzle at the right distance from the target surface whilst maintaining the right knapsack sprayer pressure. Click the play button to view the video now or to view the video off-line, click the link from the 'download' tab.
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Now you have the right nozzle fitted, know the pressure to use and have checked the width of the swath produced.