Winterizing — or “blowing out” — your sprinkler system means forcing every bit of standing water out of the pipes with compressed air before winter. Any water left behind will freeze, expand, and can crack your mainlines, split valves, and destroy your backflow preventer.
Utah winters are exactly the kind that cause this damage: warm fall days lull homeowners into waiting, then a sudden hard freeze arrives. Because our ground freezes deep and fast, draining alone isn’t enough — the low spots in your lines still hold water. A proper air blow-out is the only reliable way to protect the system.
A single cracked backflow or busted valve can cost far more to repair than a season of blow-outs. Winterizing is cheap insurance for an expensive system.