Q for pros regarding testing
We just had a bathroom remodel on the second floor that included adding a shower stall. Unfortunately after we started using the shower there was a leak through the first floor ceiling.
Testing indicates that the issue is most likely at the elbow that connects the the pipe from the control unit to the pipe that runs to the showerhead.
My question is, shouldn't this have been tested before the wall was closed and tiled?
The plumber tested the system under pressure but did not test the complete system by running the water from the shower head and the hand held. He says that they don't test those parts as those pieces are straightforward and virtually never leak.
Is testing all components before closing the wall standard?