My brain also went mushy reading Jim's FAQ. For example this little gem:
another_jim wrote:Max Hardness Allowed = Alog{44.01 - 14.58*log(T+273) - 2.739*log(A)}
or at higher alk. Alog{39.61 - 13.12*log(T+273) - 2.365*log(A)}
Huh?
However, if I absorbed the import of the table in
Calculating Acceptable Hardness at Various Temperatures and
Maximum Non-Scaling Hardness by Temperature and Alkalinity correctly, lparsons21's water hardness does not require a softener to avoid scaling.
If I am incorrect, someone please correct me.