finishing my basement; added a bathroom

I am in process of finishing my basement and I am nearing time to have the rough in inspection. When I built the shower into my bathroom, I had to build a subfloor to set the shower on so the system would work (Saniflush ejector pump system).

When I built the subfloor, I used regular untreated lumber and put 6mm plastic between the 2x6 and the concrete floor. Since hind site is 20/20, I wish I would have used treated lumber and no 6mm plastic. Do you think the setup I have will pass inspection (i.e. no untreated lumber can touch masonry)? I am concerned that if I leave it the way it is and it passes inspection, that mold will start growing between the concrete floor and the plastic and if the shower leaks, the water will set on the plastic and rot out the untreated wood. I'm in a catch 22.

Any suggestions?

Here is a pic
http://bigbikeriders.com/photopost/s...sort=1&thecat=

 

Call the inspector and ask him. Be very specific in your questions by using specific materials used and potential changes that you are think of.

The inspector is not, under any secumstances, allowed to "design" for you. This can be very frustrating and seem down right unhelpfull, however, by asking "What is the code for this" or "If I do this.... will it meat code requirments" They are more than willing to help.

There job is to interpret the code for you and to make sure you do it right so no one gets hurt. If they where to "design" your remodel then they could be held accountable if some thing failed in the future.

That said, I would probably pull it apart and use PT lumber. You are at the rough in phase so there hasn't been any finnished products installed yet. This would be the best time to make a change.