boomerang wrote:The water runs down from the rim... and runs down and runs down until the toilet is ready to overflow and then it stops... and then it drains and then it gurgles because it's empty.
It is an unfancy toilet that came with the house. I would guess, judging by it's style that it was put into the house when the sewer pipe was replaced about 4 years ago. It isn't an old toilet it just doesn't work.
Every once in a while the upstairs toilet will do the EXACT same thing.
I live in fear of anyone ever having to pee at my house.
Okies!
99% of the time something (usually a kids toy, a toothbrush or, as in Osso's case, a screwdriver!) gets dropped into the bowl and flushed and lodges in the trap that is built into the toilet itself. Your's probably looks like the center illustration in this pic:
Stuff that isn't bendy gets wedged into the little hairpin turn in there and then other things you flush get hung up on it and the whole thing gets plugged up.
When you are using the plunger you are probably loosening some of the "other stuff" for a while and the toilet works well enough. After a while it builds back up again and you have your problem.
So you need to get out whetever is up in there. It isn't hard but to be honest, most people just don't want to do it themselves. If that's your case then just call a plumber and let them do their thing. Otherwise, the easiest way to do it is to uninstall the toilet, turn it over and reach in from the drain opening in the bottom and pull out whatever is in there.
The fact that it happens in your other toilet sometimes does cause me some concern though. If something is lodged in one it won't effect any others so it is possible that your "jam" isn't in the toilet at all. It may be in the sewer pipe (which would effect both toilets) in which case you probably need a plumber to clear it. You can rent a power auger to do it yourself but it's a messy, messy job and the augers can be a PITA to use. Most people will glady pay someone else to deal with the frustration.