Outdoor water faucets can get locked due to freezing temperatures, corrosion, or dirt accumulation. To unlock them, apply penetrating oil, heat with a hairdryer (avoid direct contact), or gently tap with a hammer. Use pliers to turn if accessible.

From Chaos to Clarity: outside water faucet lock Simplified

If the lock persists, replace the faucet. Before installation, wrap the threads with plumber’s tape. Tighten the faucet securely, avoiding overtightening. For additional security, use a padlock or key lock specifically designed for outdoor faucets.