Toilet overflows sometimes even when not clogged
Hello, does anyone have any ideas? I've pulled off the toilet and snaked it both ways, bottom to top and top to bottom. Nuttin in there. Snaked the pipes all the way out to the vent tube in the front yard. Nuttin in there. Cleaned all the jets in the toilet bowl, raised water level in the tank to the maximum but the thing still starts to overflow sometimes, even with a little paper in it. I don't have any idea what to do next. Everything checks out clean. Can anyone help??