My brother-in-law (need I say more?) installed a new toilet over a ceramic floor. After a year, perhaps, the toilet wobbles a bit when you sit on it and, occasionally, you can hear porcerlain on ceramic grinding. I looked along the edge and noticed he used some nylon tile spacers, used for laying out the tile, underneath the toilet around the bottom edge.
I tried at first to tighten down the bolt on one side but it took more turns than I was comfortable making and it's still wobbling. I found some more of the tile spacers and put a couple under the same side but it's not a snug fit. So I'm not really sure how to proceed with this.
I could tighten the bolt some more but I'm worried I'll crack the toilet or, perhaps, the bolt actually came loose from the floor. I could also get some more spacers but I just don't feel that's the right thing to do. I'm not sure spacers under the toilet is the proper way to go about this in the first place.