Risers/extensions in irrigation systems perform which of the following?

• A. Connect sprinkler heads, drip manifolds, and other watering devices.
• B. Filter debris from the water.
• C. Control irrigation scheduling remotely.
• D. Provide power to the pump.

Answer: (C)

Risers/extensions serve as vertical piping that rises from the mainline to reach sprinkler heads, drip manifolds, or other watering devices. Their main job is to provide a connection point and the correct height and alignment so the irrigation components can operate properly. They bridge the supply line to the emitters, accommodating the placement and spacing of heads and lines.

Water filtration is a separate function handled by filters placed in the flow path, not by the risers. Scheduling and remote control are managed by a controller or timer, not by vertical connection pieces. Providing electrical power to the pump is part of the electrical system, unrelated to the hydraulic role of risers/extensions.