A label directs 28 oz of product per 1,000 sq ft in 1–2 gallons total. In a calibration test, you apply 40 oz of water to 200 sq ft. Is the sprayer configured for the job?

• A. Yes
• B. No
• C. It depends on pressure
• D. It depends on nozzle size

Answer: (A)

The main idea is matching the sprayer’s spray volume per area to what the label requires. The label calls for 28 oz of product per 1,000 square feet when using 1–2 gallons of total spray volume per 1,000 ft2.

In the calibration test, you’re spraying 40 oz of water over 200 ft2. Convert that to gallons per 1,000 ft2: 40 oz over 200 ft2 scales to 40 oz × (1000/200) = 200 oz per 1,000 ft2, which is 200/128 = 1.56 gallons per 1,000 ft2. That 1.56 gal/1,000 ft2 falls squarely within the labeled range of 1–2 gallons per 1,000 ft2, so the sprayer is configured correctly for the job in terms of spray volume per area.

For context, to hit the exact label rate, you’d apply the appropriate amount of product relative to that water volume (for 200 ft2, about 5.6 oz of product if you were using the full 28 oz/1,000 ft2 rate with the 1–2 gallon window). The key point is that the total spray volume per area matches the label’s acceptable range, which is why this configuration is appropriate.