Last time I had a toilet drip (years ago) it cost me big time! I was away on vacation and came back to a huge and costly mess (months later). This time I am at home and would like to nip this one in the bud (before I go away again). I just started hearing a drip last night. I took off the tank cover and can hear an intermittent drip, but can't see where it is coming from! Can someone please give me some guidance as to how to proceed? This low-flush ball-float toilet is about 20 years old. Thanks!