We are on tank water now. We do filter it through a bench top system as the gutters on the house are a bit cruddy, so just want to be safe. We do buy bottle when we are out and about, just so slack at remembering to fill bottles.

Had no issue with fluoride when we were on town water in Melbourne, it was only just introduced to our last town. It is the one thing I don't like about tank water, the lack of fluoride.