The one I use we can't talk about but it would be abbreviated with the same initials as Halle Berry and the first word is a prefix meaning water. It's free from the developer's website but has a bit of a learning curve.So very much like brewing. I think I have all of my local water info in a spreadsheet around here somewhere.
So many rabbit holes to travel
Thanks for the info I will take a poke around the google and see what kind of premade calculator I can find and mess around with it.