For small areas 5-15 feet, typical spray head configuration uses:

• A. 30 psi and 1.5-2 inch precipitation rate
• B. 60 psi and 0.5-1 inch precipitation rate
• C. 15 psi and 3-4 inch precipitation rate
• D. 45 psi and 2-3 inch precipitation rate

Answer: (A)

Spray-head performance in small zones focuses on keeping the water application compact and using a moderate rate of wetting. For a area roughly five to fifteen feet across, a lower operating pressure around thirty psi helps limit the spray radius to stay within the target area, reducing overspray onto sidewalks, driveways, or other non-target surfaces. A precipitation rate around one and a half to two inches per hour strikes a balance between delivering enough water for uniform soil wetting and avoiding excessive runtimes or runoff in typical turf soils. This combination ensures quick, even coverage without wasting water or causing puddling. Higher pressures would push the spray farther than the small zone can contain, while too-low pressures can produce an inconsistent spray pattern and incomplete coverage, and a very high rate can overwhelm the soil in a compact area.