| Pressure (mH2O) | UC and UD | Spacing between sprinklers (m) | |||||||||
| 6 × 6 | 6 × 9 | 8 × 8 | 6 × 12 | 9 × 9 | 9 × 10 | 10 × 10 | 9 × 12 | 10 × 12 | 12 × 12 | ||
| 25 | UC | 96.0 | 93.4 | 91.2 | 91.6 | 93.0 | 91.6 | 89.8 | 87.6 | 87.1 | 85.3 |
| UD | 93.6 | 88.8 | 87.6 | 83.4 | 89.4 | 86.5 | 83.8 | 81.8 | 77.1 | 75.7 | |
| 30 | UC | 96.7 | 95.1 | 94.2 | 91.1 | 94.9 | 94.9 | 94.1 | 89.4 | 88.8 | 85.7 |
| UD | 94.5 | 91.5 | 92.3 | 83.3 | 92.6 | 91.1 | 90.9 | 84.2 | 81.1 | 78.2 | |
| 35 | UC | 96.3 | 94.7 | 95.0 | 89.7 | 94.9 | 95.2 | 94.9 | 89.8 | 89.0 | 86.1 |
| UD | 93.8 | 91.4 | 91.1 | 85.6 | 90.8 | 91.1 | 91.9 | 85.0 | 83.2 | 78.2 | |
| 40 | UC | 96.6 | 95.0 | 94.7 | 87.2 | 95.4 | 94.8 | 93.7 | 86.3 | 85.4 | 81.2 |
| UD | 95.0 | 92.0 | 91.3 | 80.0 | 92.2 | 91.8 | 91.0 | 79.2 | 78.0 | 70.5 | |