Thanks guys,
that is the link I used to find that we are supplied with water from the Prospect plant. I got the various mineral properties from the same site, thanks.
Pat,
No house beer, yet. Still way to much fun jumping back and forth, testing new things and gadgets! Last beer was the first to caramelise some wort, first in the temperature controlled fridge, the one before that was the first english mild, the one before the first with corn. Simply can't decide what to keep brewing, hehe.
What I have done is read the palmer part about water chemistry a couple of times and done some googling around water profiles for brewing, water additions, etc.
You are right, I have to measure my pH before deciding on a clear course here, definitely.
But what I don't buy is that I should keep brewing in batches of 30 longnecks my mediocre beers and work on my process, knowing that the Sydney calcium content is too low and that it could be improved with a couple of teaspoons of chalk.
"everywhere" I read about brewing water chemistry, the figure of absolute minimum 50 ppm of calcium comes up, and sydney has quite a bit less. So I figure that I can add some chalk when making a darker beer and some calcium sulphate when brewing a lighter beer to help my local water in the right 5.2-5.6 pH range. It's been fun reading about it and playing with water additions, and measuring pH or not, there is (according to Palmers nomograph and the online version of this on the site from 4star) no doubt that the pH will be more suitable with some calcium added. Using the spreadsheet from palmer and the online tool 4star linked to, it seems quite easy to help bring the pH into an "optimal" range while keeping an eye on bicarbonate levels, sodium levels, etc.
Way off on the wrong track, trying to improve small stuff while my process needs main road work?
Possibly, hehe! (probably?)
But also fun to learn about something new, and another way of looking at it, is that I am picking low-hanging fruit to quickly and with no hassle improving my chances of good beer by helping with pH and Calcium.
Guess I am a tinkerer