No worries. If he is any good at maintenance plumbing trouble shooting he will do that anyway. good luck.

As a plumber and if it was my job to trouble shoot the issue these are the steps I would take before even contemplating to rip up concrete or if…

I say this is an absolute horrible idea, can you raise the ceiling height too as a raised floor will make this feel like a very enclosed room.
And as…

I say this is an absolute horrible idea, can you raise the ceiling height too as a raised floor will make this feel like a very enclosed room.
And as…