After years of working perfectly, one morning my toilet stopped filling. All at once. The problem is as follows:
The toilet flushes correctly, but the tank does not fill. No water is coming into the tank.
I turn off the shut off valve, then turn it back on, and the tank fills correctly. I can repeat this Twilight Zone scenario time and time and time again. No change.
To date, I have replaced the shut off valve (the pressure was strong - got a few facefuls of water when I mistakenly turned the valve on while tightening the nut).
I also flushed the hose running from the shut off valve to the tank (it's clean as a whistle and the gaskets at both ends look healthy).
Any help you can give I'd really appreciate it. I can find no satisfying answer online for this bizarre problem.