Toilet Wont hold water in bowl after gasket replacement.

TenOC wrote:
I had the same problem. Replaced seal twice still leaked. Then I use some toilet bowl cleaner. The cleaner dissolved the "lime" around the ball. I could see it bubbling around the ball. Now for the past 4 months it work fine

I had this same problem with hard water deposits that I had to scrape and clean off. These were brown and very hard. Used a scraper first then steel wool to remove the rest of the buildup. The old seal worked well after the clean up.