What does a pressure gauge measure during an irrigation audit?

• A. Soil moisture levels
• B. Dynamic water pressure
• C. Total water flow
• D. Emissions from nozzles

Answer: (B)

A pressure gauge measures dynamic water pressure during an irrigation audit, which is crucial for assessing the system's performance. Dynamic water pressure refers to the water pressure in the system while the irrigation system is operating, helping to evaluate whether the irrigation system is functioning within its designed specifications. Accurate pressure measurements are essential for determining how well the system delivers water to the landscape.

Understanding dynamic pressure allows landscapers to identify if there are issues such as blockages or leaks, or if the pressure is too high or low for optimal operation. This information is vital in making adjustments to improve efficiency, ensuring that plants receive adequate water without wastage.

In contrast, measuring soil moisture levels, total water flow, or emissions from nozzles pertains to different aspects of an irrigation audit. While those factors are important for overall irrigation management, they do not provide direct measurements of the pressure within the system, which is what the gauge specifically assesses.