My wife turn off the supply line to the toilet and when I turned it back on, no water came on. I removed the flexible line at the stop value and when I turned the value on, water came out. I hooked up the line and the toilet started to fill but at half way the pipe in the wall thundered and no more water. I did the same thing again and it filled about a quarter of the way and then bang and it stopped again. I replaced fill tube assembly and that didn't help. The cold water to the sink and tub work fine. I did this a few more times with the same result. I am baffled!