That was my first thought, but the smell was there before we cleaned the carpet. That's where the problem is. The PM says urine but it aint urine. again I would love for that to be the problem but that cannot be the problem if the problem existed before we came in!Again...no idea on the celery other than it may be your description of the smell carpet gets after being wet to long and the microbes start multiplying.
What I do know is if there is not someone coming in spraying the carpet after you leave and it is still wet 2 days later.........you did something wrong (not meant to be an attack)....