About a 1.5 weeks ago, I changed the guts of my toilet including the flapper. The flapper was giving me a problem at first because it didn't seat well until I vaselined the plumbing it touches when the tank fills up. That worked great for about a week but now I hear the toilet begin to run again (for a few seconds several times a day) as before I did the vaseline trick.
Is there anything different I can do to make the flapper seat properly (any plumbing tricks of the trade) ?
The only two options that come to my mind are, more vaseline or replacing the flapper. Any other ideas or is there a well made flapper to stop this type leakage? If it matters, the toilet is about
8 years old and otherwise appears to be fine.