Customer had stoppage in both bathroom groups. Unit is new construction and only two months old. Found soft tissue stoppage in wye fitting about 45 feet downstream. Cleared the stoppage and confirmed water was flowing all the way to vertical drop in pipe almost 50 feet out. Set the toilet back and let customer know I didn’t recaulk toilet in commercial bathroom because of the presence of a floor drain. Check all work to ensure proper function and no leaks. None were found.