I was in that sort of half-asleep, not-yet-awake place one morning when I heard the sound of water dripping. At first I thought I was dreaming about a leaky faucet in the kids' bathroom. Then, as I ...

Q: This is about a condo on a slab. I hear an occasional drip sound in our bathroom walls, very occasional; sometimes prominent after using water. No evidence of leak. Could it be pipe ...