When I flush, the first few seconds seem normal (from what I know), I then here the clunk starts the water going down and (would) finish with the girgle.

Well, if there are waste in the bowl, everything just spins, about half the water stays in the bowl and no girgle.

When empty, the water spins a rather long time, the bowl does empty with a rather wimpy girgle.

Background:

I just bought this 120 year old home. The first and second floors were rehabbed about 15 years ago. The third floor was rehabbed two years ago.

The toliets on the first and third floors work just fine.

I have good water pressure as the line to the main city line was just retapped last year.

Before I go ripping things out and replacing the toliet, perhaps there is either a simple solution or replacing the toliet it not the solution.

Thanks for any comments