What is the role of the Point of Connection (POC) in an irrigation system?

• A. To shut off individual manifolds
• B. To act as a filtration system
• C. To connect the irrigation mainline to the water service line
• D. To measure the amount of irrigation water used

Answer: (C)

The Point of Connection (POC) plays a crucial role in an irrigation system by serving as the link between the irrigation mainline and the water service line. This connection is essential for directing water from the municipality or water supply into the irrigation system. The POC must be designed and installed correctly to ensure that the irrigation system operates efficiently, providing adequate water flow while maintaining proper pressure levels.

This connection is critical because it influences the overall performance of the irrigation system, including its ability to efficiently distribute water to the landscape being irrigated. A well-executed POC can help prevent issues like backflow and ensure compliance with local water regulations, which often mandate specific practices to protect the water supply.

Although the other options refer to important components or functions within irrigation systems, they do not accurately describe the role of the POC. Individual shut-off valves for manifolds, filtration systems, and water measurement devices serve different purposes that are essential for the operation and maintenance of the irrigation system but do not relate to the primary function of the POC itself.