Well that sucks.  The inspector( Lisa) arrived today and was inspecting the venting when she noticed the vents required on her drawings were different than those on Brian's.
Yikes was that not what we expected.  Ot turns out the woman(Gail) who did the original HVAC designs changed them when we went to concrete walls and added air-conditioning.
She then up sized a lot of vents to six inch pipes but we were working with drawings that ask for five inch pipes.
Brian is not happy and it will take some time to sort this out.  He would like to wait until our HVAC guy(Dave) is back so they can talk to Gail together and hopefully she will re-look at the plans.

The time lost to fix this is not the issue as much as the cost of new venting.  Metal is one of the more expensive parts of house building right now and we do not want to spend that much extra.

Other wise we can still tile bathrooms while we wait for a decision.

E/B