If the spray pattern is uneven, which issue is most likely?

If the spray pattern is uneven, which issue is most likely?

• A. The pressure setting does not match the operating range of the nozzles
• B. The nozzle screens are clogged
• C. The tank is aerated
• D. The boom height is too low

Answer: (A)

Uneven spray pattern usually points to the nozzle operating outside its designed pressure range. Each nozzle type is tested to perform best at a specific pressure, delivering a consistent flow and droplet size. When the system pressure is too high or too low for those nozzles, the spray fan distorts and the flow from different nozzles becomes uneven, creating patches of heavier or lighter coverage across the target. Other causes can create spray issues, but they’re less likely to produce a clearly uneven pattern across the field. Clogged nozzle screens restrict flow and may cause partial or irregular spraying, but the core issue behind a pattern that isn’t uniform across all nozzles is incorrect pressure for the nozzle type. Tank aeration introduces air pockets and can destabilize flow, while a boom that's too low mainly affects where droplets land and drift rather than the uniformity of the spray from each nozzle. To fix it, match the pressure to the nozzle’s recommended operating range and check for uniform nozzle performance.

Uneven spray pattern usually points to the nozzle operating outside its designed pressure range. Each nozzle type is tested to perform best at a specific pressure, delivering a consistent flow and droplet size. When the system pressure is too high or too low for those nozzles, the spray fan distorts and the flow from different nozzles becomes uneven, creating patches of heavier or lighter coverage across the target.

Other causes can create spray issues, but they’re less likely to produce a clearly uneven pattern across the field. Clogged nozzle screens restrict flow and may cause partial or irregular spraying, but the core issue behind a pattern that isn’t uniform across all nozzles is incorrect pressure for the nozzle type. Tank aeration introduces air pockets and can destabilize flow, while a boom that's too low mainly affects where droplets land and drift rather than the uniformity of the spray from each nozzle. To fix it, match the pressure to the nozzle’s recommended operating range and check for uniform nozzle performance.