Frozen pipes encased in slab
The water lines to the laundry room in the back of my house are encased in the foundation slab. They come up an exterior wall to inside spigots that connect with hoses to the washer.
I kept the room quite warm last night, which should have kept the vertical pipes from freezing, but the cold water line isn't producing any water. I've removed the washing machine hoses, and nothing is coming from that spigot.
I can wait it out until the outside temps warm up, but should I be worried about damage to the line encased in the slab? How do you know whether anything's wrong?