I ran a cpvc pipe through a cinder block exterior wall to put a spigot in. I don't really have access to the inside of that painted cinder block wall where the pipe enters the cinder block. It just got really cold here and I forgot to cut the supply of water to the spigot from the inside cut off. I turned on the spigot and nothing came out. The spigot is sealed around it with caulk.
Basically I think my pipe froze and thawed but I'm not seeing any signs of leaking. How can I know if it is actually leaking?