| 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 | 92.4 | 87.9 | 81.6 | 91.5 | 82.4 | 88.1 | 89.1 | 84.6 | 82.1 | 76.6 |
| UD | 88.8 | 81.4 | 69.1 | 85.6 | 75.4 | 82.6 | 84.7 | 74.0 | 71.0 | 67.2 | |
| 30 | UC | 93.7 | 89.7 | 87.2 | 93.2 | 85.0 | 87.7 | 91.8 | 89.0 | 87.8 | 83.1 |
| UD | 89.8 | 83.6 | 76.8 | 87.9 | 76.5 | 83.3 | 89.8 | 81.1 | 77.7 | 71.4 | |
| 35 | UC | 94.6 | 92.0 | 86.7 | 93.6 | 88.4 | 91.7 | 93.6 | 90.9 | 88.4 | 83.8 |
| UD | 90.3 | 88.1 | 77.5 | 87.8 | 82.4 | 88.3 | 90.2 | 84.2 | 80.3 | 74.6 | |
| 40 | UC | 95.0 | 93.5 | 88.7 | 93.8 | 91.3 | 94.2 | 95.5 | 92.1 | 89.7 | 86.2 |
| UD | 90.7 | 90.7 | 81.0 | 87.9 | 87.6 | 92.1 | 91.8 | 86.3 | 82.8 | 78.6 | |