What role does a pressure regulator serve in an irrigation system?

A pressure regulator plays a crucial role in irrigation systems by maintaining consistent pressure levels throughout the system. By ensuring that water pressure remains stable, it can help prevent damage to irrigation components and allows for uniform distribution of water. If the water pressure is too high, it can lead to issues such as overspray, water wastage, or inefficient irrigation. The pressure regulator effectively provides a controlled environment where irrigation systems can operate optimally, ensuring that plants receive a reliable and adequate water supply.

Other options revolve around increasing flow, filtering debris, or monitoring soil moisture, but they do not align with the primary function of a pressure regulator. Increasing water flow would typically require different components, such as pumps. Filtering out debris is the role of filters, and monitoring soil moisture levels encompasses different technologies, such as moisture sensors, which are separate from the function of pressure regulation.