Did they or are they going to pressure test your water lines before they pour the floor? Last year when I was in Roi Et working on one of my wifes condo's, the water was leaking under the floors so had to surface it into the unit through the drop in ceiling, also had a leak in the walls on 2nd floor had to go through the floor and surface run that also, it was a mess, got done 2 days before we left. The plumber must have had a bad night the day before he did that one. So that's one thing I'm going to make sure I get done is pressure test water lines.