I left a hose attached to my spigot during the first freeze. Nothing happened at the time, but just a few days ago someone went to use the spigot and the water didn't come out - well it did, but it came out inside my basement rather than from the spigot. Closing the valved stopped the flooding.
From what I can tell, I'm guessing that I have either an anti-siphon valve or an anti-freeze valve and a break occurred somewhere along the foot or so of pipe between the spigot and the actual valve since the valve being closed was able to stop the water that was coming into my basement through the basement ceiling.
I've looked at a number of how to's for these types of spigots, and they all seem to indicate that you should replace the whole unit by going into the house to access the attachment point a foot or so back from the actual spigot. The problem in my case is that there is absolutely no access. I think that whoever finished the basement didn't provide access and covered it with drywall.
So, my question is: is there any way to replace this without having access to the actual connection point a foot behind the outdoor wall, or am I looking at cutting out the drywall to gain access (and replacing with an access panel unlike the other person that walled it off)?