i live in NSW Australia, I remember one of the finest tap beers I ever had came from Bulahdelah bowling club.
The reason, Hunter brewery uses rainwater I am told. Sydney's Carlton Unted brewery uses pure old Sydney tap water.
Good enough for the experts good enough for me.
What I don't like about the expert's brew is the arsenic used to kill off bacteria and give me a headache.
They say distilled rain water is even better for brewing but I can think of a 1001 better uses for a still come about Autumn . I reckon just boling rain water is good enough for this piss head.