Water all comes from the one source pretty much. Try checking Power and Water website not sure how much info is on there. Only real difference I believe from suburb to suburb is probably chlorine and maybe flouride levels depending on where you are in relation to where they are dosing, may be some changes in turbidity again depending on location. But I would be fairly sure mineral content etc. would be much the same.
There is some fine print with Cheeky, basically not grain.
One of the local brewers puts together an order from down south for grain, from time to time and we get discounted freight on the order.
Once I'm moved in and set up, we should totally do that.
Now I have to try and convince the wife that I NEED to bring a couple of 50ltr batches worth of grain up too.