I just moved my new 115 in and put it on the stand, I spent several hours yesterday leveling the stand with wooden shims, (If anyone wants to know my opinion of Dominion homes just ask :argh :argh :argh ) The stand is level and straight, I put the tank on and it rocks slightly, I shimmed one corner, to see how much rock it had, and I would say less than 1/16'' at the worst point. If this was your basement would you fill the tank with water? Am I just being too picky or is there a worry here? It is a brand new tank (built 4 weeks ago this coming monday), so the silicone is in excellent shape and I would think it will be O.K. but this is a lot of water for my new basement to absorb. Please just give me your thoughts and experiences, I will hold no one liable.