Describe how to deal with nozzles that are producing an irregular spray pattern.

• A. Check pressure. Clean strainers. Clean nozzles.
• B. Increase pressure.
• C. Replace nozzle.
• D. Calibrate sprayer.

Answer: (A)

When a sprayer shows an irregular spray pattern, the most common cause is deposits or clogs in the system that disrupt consistent flow. The first thing to check is that the operating pressure is within the nozzle’s intended range; if the pressure is off, the spray pattern can be uneven across nozzles.

Next, inspect and clean the strainers. Strainers trap debris before it reaches the nozzles, and a blocked strainer can restrict flow unevenly, leading to irregular patterns. After that, remove and clean the nozzles themselves. Flush them with clean water and, if needed, use a soft brush to remove mineral deposits; any partial blockage will cause sprays to misbehave.

Reinstall and test the sprayer to see if the pattern has straightened out. If irregularity persists, check for damaged or worn nozzles and replace them as needed. Calibrating the sprayer can help ensure correct application rates, but it won’t fix a clogged or partially blocked pattern by itself. Simply increasing pressure is not a reliable fix and can worsen the issue.