I think when you first posted about the tank, that the suppliers had agreed with you that it was a returnable defect.Defects happen but good manufacturing practices and QC checks should catch most of them.
Haven't needed a plunger so far...I'm waiting for a year plunger free to declare victory.
runs with bison
Those are the things I count.
That would be a good example.
A year without a plug?
You could have grand kids come over for a visit and flush army men down the toilet, you're just tempting fate aren't you.