I just had a Toto Drake installed this morning by a professional plumber, and then left for work. When I got home tonight, I noticed that the tank has about two inches of play -- it wobbles forward and backward. So far, it is not leaking. I have an identical Toto in another bathroom (different installer) and the tank is rock solid. I am concerned that when the plumber gets back to me, he will say "that's normal for a Toto" or similar.
Has anyone ever had this problem? Is there a likely cause? Thanks in advance for any advice.