Australian drinking water sucks. The only water I could find here that I can drink without feeling sick is Evian water (even though this one still has a noticeable weird taste), Luso water, which is Portuguese water that is very hard to find around here (only one tiny family store that imports some Portuguese products has it) and amazingly a weird bottled water from Serbia that I can't remember the name of and I only found it twice in a small shop.
I have tried all the bottled water I can find around here, and those are the only waters that don't suck that much.
At first, I thought I was the weird one, but even my wife and her sister can't drink any bottled water here either, only sparkling water (which I don't like). And they are both 100% Australians.