I have a similar problem, toilet is just lazy and 70% of the time it rotate water but dont take it away. A single drop of a cup of water to create the flow initiate the gluup and it empties the bowl.Already removed the toilet, it is complete clean, wax in place, drain at the floor is wide open and accepts easy several galons of water at once, drainning it all.I notice that this toilet tank takes more time to flow water into the bowl than the other toilet (same type) at home. Already cleaned all the internal holes from where water flows into the bowl… it helped a bit, but not solved the problem.Used chloride to attempt to clean the path of the water up to the holes, nothing changed.Water reservoir valve opens wide.I think it is a construction problem that does not allow enough water flow to generate the right water volume…What you guys think?Thanks.