It's about 2" from the overflow teeth this morning. The tank is starting to lean a little to one side. the weight has taken if off level. It is very slight, but of coarse I can see it. I will have to see how bad it gets......prolly just have to live with it. @Erin, I know you are totally right. I just decided to take the gamble. That is a LOT of tapwater to throw away. So far, so good. Sheet rock today.......hopefully some plumbing as well.