We have two bathrooms in our house. The toilets are new w/in 4-5 years. The upstairs toilet works just fine (and is identical to downstairs toilet). The downstairs toilet won't flush all the water (and solids) down. The bowl fills up when flushed and then slowly (about 15 minutes) drains to normal water height. We have snaked the drain to find there were no blockages, we took the toilet off, to find no blockages, ran a hose through it and found that the water left the bowl with the pressure from the hose (from the intake hole in top of bowl where water comes in from the tank). We snaked the drain in the floor while the toilet was off and did not find any blockages. We replaced the toilet and still have the same problem. The water is not draining from the bowl.

What should our next step be? I have the parts to replace the entire system in the tank, but was told that shouldn't be the problem. Is there something I am missing?

Thanks for any advice!

Did you use a closet auger to snake the toilet?

Yes we did. When we removed the toilet we were able to use the auger from both sides of the bowl.

Does this do this each time the commode is flushed or after several flushes? If it does it the first time you flush it almost has to be something in the toilet bowl. So here is what I suggest take the commode up again and run the auger through the bowl until you can see the end of the auger. Now tie a towel of something on to the end to make a large ball on the end of the auger, don't make it so big that it will not go through the hole. Now pull the ball backwards through the bowl to se if you don't pull something out.

Let me know how things turn out.

You used an auger, howe big and how long? When we say to rod or snake a main drain we are usually talking about a sewer rodder with at least 2" or 3" cutter