What can affect the assessment of an irrigation watering system?

The assessment of an irrigation watering system can indeed be significantly impacted by dirty nozzles, which can affect pressure and distribution of water. When nozzles are clogged or dirty, the system cannot deliver water evenly or at the appropriate pressure, leading to inefficient watering. This can result in some areas receiving too much water while others get too little, ultimately affecting plant health and growth.

On the other hand, consistent water flow may indicate that the system is functioning well, while frequent maintenance and cleaning typically contribute to optimal performance. A lack of flora in the area may influence the need for irrigation but does not directly affect how the system operates. Therefore, the presence of dirty nozzles is a critical factor in assessing the efficacy of an irrigation system.