Just about anytime I take a crap in one of our toilets and the load is "large" the toilet tends to clog. It happens almost all the time if I use toilet paper but still clogs often even if I flush before wiping. [sorry for the details]
I can always clear it with a few quick plunges. I have tried using one of those hand screw augurs (the ones with the plastic sleeve to protect the trap) and it didn't meet any resistance nor did it fix the problem. I have also tried feeling down the trap with my hand and didn't feel any objects there.
The toilet itself is a regular gravit flush one, maybe 5-10 years old. I can't see the model number.
Where is the likely source of the problem? clogged/bad trap? too narrow waste pipe? too many bends in the waste pipe? bad wax seal? bad vent?
I can't see the waste pipe so I don't know the diameter but since this is a 150 year old house, I wouldn't be surprised if there were issues somewhere with the plumbing. By the way the bathroom (and toilet) is on the third floor and I suspect that it was plumbed in sometime in the last 30 years
Any thoughts on how to troubleshoot this? I would prefer not to remove the toilet if I don't have too...