When should you flush a new sprayer?

• A. Before Use
• B. After Use
• C. Before Storage
• D. During Calibration

Answer: (A)

Flushing a new sprayer before use ensures the system is clean and ready for accurate, safe spraying. New equipment can contain manufacturing residues, lubricants, or preservatives in the tank, hoses, pump, and nozzles. Running clean water through the sprayer first removes these residues and helps reveal any leaks or faulty seals before you mix pesticides. This step also helps ensure the spray pattern and flow are consistent, which is essential for applying the correct rate and achieving even coverage. After flushing, you can proceed with calibration and then use the actual spray solution, following label directions for cleaning between different products.