question about Toto Aquia toilet
We just got a new house, but haven't moved in yet- we have only spent a few hours there on a few evenings.
The home has what appear to be toto aquia dual flush toilets in the bathrooms. On two occasions, I think I have seen odd behavior on two different toilets- where they flush, re-fill as expected, and then sort of flush themselves again, but keep flushing water. I haven't timed it to know if or when they would turn off again, but since they are low flush, it's weird. The added concern is that the home is on a septic system, so it is really a problem if a toilet is wasting water like that and we don't notice it. Of note: the house was remodeled and then sold- it's not clear how much time the previous owner spent there before selling, so he may never have encountered this problem with flushing.
Does this sound like improper installation, or a common re-adjustment needed?