The toilet in our only bathroom seems to go through drain seal about once a year. The flange on the drain line is old, and broken in several places, but we're able to keep everything firmly in-place none-the-less. We've tried both regular wax seals, and ones with reinforcing, both of which seem to fail much faster than designed.
Are there any good tips/tricks to getting the seal to last longer (more like the 10 years others get)?