Spigots/Hose Bibs: usually outdoors, spigots are meant to be connected to a hose for outdoor watering. While the plumbing is generally indoors to protect it from freezing, it’s not uncommon for freezing to lead to burst pipes, when a hose is left attached to the spigot during the winter. If a pipe or spigot freezes, it will crack and leak, and must be replaced.
How to Fix a Leaky Outdoor Faucet
How to remove and replace a Vacuum Breaker / Backflow Preventer