Close the backflow valve to prevent air from escaping ... Sprinkler System Some underground automatic lawn sprinkler systems require you to drain the pipes manually, rather than blowing the ...

Despite a warm forecast, most experts advise waiting until mid-May to activate sprinkler systems. Here's what the last-freeze ...

Locate this valve’s drain cap and open the valve ... If any parts of your sprinkler system—including pipes, backflow preventers, and main shut-off valves—are above ground, it’s a good ...