fsrph
New Member
In this photo, it looks like the water fell to about the height of the original seat, and not to the bottom of the tank. That seems to me to suggest the sealant between the new black piece and the original seat is leaking. It could be that waiting longer would have made the water level drop further. In that case the problem would be the tank to bowl seal. But if the water stays as it is in this photo, I suspect the sealant was ineffective.
That's was very observant of you. There was a small amount of water in the tank this morning - right up to the bottom edge of the flush valve. I kept the toilet water supply off most of the day and the tank water level did not decline further.
Francis