John. I have the sample problem you do.
Now mine is leaking from the tank, just a little bit of water running. I
can see it but there is not the noise of running water.
I had put a new flap and chain in our tank too.
I have to hold the handle down for months now. Now this problem.
It costs $75. for a plumber to walk through the door, so I am waiting if
I have to call him for something else.