Leak Detection advice needed

[Ledormity]

I had a similar issue with a burst pipe last year and couldn't find anyone available late at night. Someone on a local forum tipped me off to https://www.plumbprosc.com/plumbing-emergency/ and they actually answered right away and helped stop the flooding fast. Might be worth bookmarking just in case—you really don’t think about these things until water’s pouring down your hallway.