Originally Posted by bddadles
Clean like they said and try some dielectric grease on the seal. I have found this to work the best. And if the ball seal needs to be replaced it is not real hard to do. Just get the proper parts, unbolt the toilet (turn off the water), Take it outside on a table and replace the parts. Gloves help also.
I used silicone plumbers grease, but I bet dielectric is virtually the same thing. I cleaned and greased the seal every other trip or so for quite a while. I applied a light coat to the top of the ball as well, though that's probably unnecessary.
When greasing the seal stopped working I checked, and the kit to refurb the toilet was close enough to our service contract deductible that we just let our trusted independent repair shop replace the toilet.