I can hear running water but can't find a leak...
I can hear what sounds like water flowing through a pipe in the upstairs bathroom near the tub supply lines. We have looked all over and can't find any evidence of a leak anywhere upstairs, downstairs or outside. It isn't the toilet.
We isolated the hot water and the sound stopped. With the water on and the sound going, the water meter isn't moving (thank goodness!).
Anyone have any suggestions what might be going on??