I just installed a brand new American Standard Champion in my downstairs bathroom. I was congratulating myself on an excellent watertight installation on the first try but I find I'm perhaps a little premature.
While the tank to toilet seal is perfect normally, if I'm sitting on the throne and lean back a bit while reading, I'm finding the seal between the tank and the toilet is being broken slightly. It's not a gullywasher... just a slow drip, drip, drip from both sides. Looking behind the tank, I find there's a good couple of inches of free space between the tank and the wall. Looking inside the tank, there's just the two bolts that would resist side to side movement but don't do a thing to prevent backward motion.
Before I crank the bolts down unnecessarily, the thought occurs to me to stick some sort of spacer behind the tank to stop the backward movement and prevent further leaks. How is this problem usually handled?