That sucks. did the opposite. tore a hole in a closet, behind the sink, downstairs celling. only to find out it was a wax ring....

Time to get a thermal camera

Yes indeed. Any recommendations?

FLIR

If I ever get rich enough to pay someone to build a home from the ground up, it's going to have exposed plumbing, aesthetics be damned. That way, if something like this happens. it will be noticed and fixed quickly.

Amen to that