I just purchased my first home, and the toilet seemed to move a bit more than I had ever seen. I checked the nuts and they seemed to be pretty tight, so I emptied the water out of the toilet and lifted up. Just so happens that the toilet was sitting on the floor without being anchored to anything. My plan was to get a 4" brass flange, bolt it down to the concrete, hammer the lead pipe over the flange, and re-secure the toilet with bolts. I was reading some other posts in this group which said that the flange should be located on top of the tile, but I am not sure if I do that if I will have enough excess lead pipe to seal over the flange. There looks to be about 1/4" between the concrete and tile. I called a plumber but they wanted around 100-200 to fix this and their plan was to solder the flange to the lead pipe (not anchoring the flange any other way)
Can anyone offer any suggestions, I was thinking of just getting a fluidmaster extra thick reinforced wax ring, cutting the little bit of tile in the way of the flange sitting flush with the concrete, and screwing the flange into the concrete using Tapcon screws.