Toilet tank keeps running
First time here so I appologize if this question has been answered. Our toilet has decided to intermittently keep running. I look in the tank and it seems that nothing is impeding the flapper from closing and the link between the flush handle and the flapper valve seems to be ok. Any suggestions about what I should do? I would buy new "guts" for the tank but there doesn't seem to be anything broken or missing right now. This is an old style big flush toilet.