A couple of years ago, I replaced the toilet valve and observed that it did not operate at all, if I opened the water supply line valve (at the wall) much more than say a turn and a half. I have since lived with the fact that the tank took a minute or two to fill.
Today, in performing not directly-related work, the plumber said he replaced the water supply line (to remedy the problem above). He said there is a "safety feature" in the supply line (or something to that effect) that caused my problem. So, I deduce, "high pressure" in the supply line can cause it to cease? Is this correct (please explain)? I no longer have the old supply line hose, so I can't describe it carefully.
Please help me understand this, so I can return to feeling like I mostly-understand how my toilet works! : )
Thanks, Bill