The plastic sheeting they have only goes up half way.

However, it IS kind of cheesy plastic.

Ya know cut something off or put plastic somewhere... 

They put a plastic kitchen table in the front yard. 

I do the following: plastic sheeting over studs; 30lb felt over that; cement board over that (bottom doesn't touch shower pan or tub by about 1/4" or so); thinset or mastic depending on the tile; caulk all seams.

Aloha,Unless you actually have a place to store them, I would say they would need to store them, wrapped in plastic or a tarp, out of harms way and re-install them at move out so you can confirm condition at that time.

I would have responded last night but my 9 YO decided to throw a plastic toy at the speed of sound. 

If you are afraid off mold you should seal yourself in a plastic bubble like the bubble boy from the movie.  

Another form of plastic pipe is CPVC.

The bare copper one goes to another clamp on the other side of the meter; it's there so the plumbing in the house is still grounded, even if the meter is gone, or replaced by one with a plastic body.The yellow handle is a valve.