DENVER — As the grass begins to turn green across Colorado, many are wondering when the best time is to turn on a sprinkler system ... sprinkler pipes above or below ground leading to costly ...

“Systems with components above ground are the most prone to damage ... Late-season frosts and frozen ground can lead to damaged pipes and sprinkler heads. Typically, startup may commence ...

STEP 5: Insulate any system components that are located above ground. If any parts of your sprinkler system—including pipes, backflow preventers, and main shut-off valves—are above ground ...