forrealb50 is the TLF reactor now off line? how long did you end up using kalk? and how stable was your parameter say after 3 months and 6 months?
I'm using the TLF reactor but in a different way. I now add the kalk in the 20gallon ro/di res. When the pump comes on for the ATO it still goes through the TLF reactor but the check valve and sprinkler head is removed.
my question is do you dose magnesium separate. I read the entire thread and did not see anything on that. I assume you do but I could be wrong.
I'm going to start dosing magnesium.
I actually broke down the 60 gallon tank last year and I have my new 187 gallon that I'm using Kalk in. The tank is still new around 4-5 months and still working out the dosing schedule kinks.