We recently had, and others also on this Forum, a leak when the floor drain separated from the piping.
Also, can you check behind the wall for a possible leak in the supply piping to the faucets?
Dick_B
2003 SunnyBrook 27FKS
2011 3/4 T Chevrolet Suburban
Equal-i-zer Hitch
One wife, two electric bikes (both Currie Tech Path+ models)