I am replacing a toilet in my parent's house (putting the same one back in). I removed the toilet because it was leaking through to the ceiling below. I had to pull out and replace six tiles, and I will be going back tomorrow to reseat the toilet, having given the mortar a few days to set.
When I took the toilet out, the plastic insert that comes with the wax ring was crooked, and I assumed that was the reason for the leakage. While I had the tile out, my father put a torpedo level on the top of the drain and determined that it was not level. I don't know how bad it is, because I hadn't really noticed. Based on the fact that I hadn't noticed, I am assuming it is not too bad, though. The drain is even with the subfloot, so there is the tile and mortar width between the bottom of the toilet and the drain.
There's the background, here's the question: I was planning on simply reseating the toilet with a new wax ring. Do I have to do anything to account for a slightly off-level drain?