I installed a Todo Drake toilet over one year ago. Last week, it clogged when it didn't flush properly, so I re-flushed. That clog stayed in place despite my attempt at plunging and use of a 3ft closet auger. It sat during the day with a high water level while I was at work and it had completely drained when I returned home. I then flushed and plunged to no avail that evening. The next morning, it had drained down again. I got a 6 ft closet auger and it finally gave way with a woosh... Problem 1: The toilet leaked onto the ceiling of the room below. So after unclogging, I pulled the toilet. I could not identify the location of the leak. The attached picture shows the wax ring that was in place. It obviously leaked from above the flange, but I can't find an imperfection that would point to a leak. The flange and floor are both level. The toilet base did not have any imperfections, debris or retained wax. Question: Why did it leak? Should I expect that ~12-18 inches of water head for 12+ hours lead to a leak? Should I just replace with another wax ring or is there something else that I can do to improve that seal? Problem 2: I fiddled with the water fill and it flushed and filled properly before I pulled the toilet. I also scoped the drain afterwards and there was no drain issue.