How many use both - Ca & Kalk reactors

[Delphinus]

I used to use both, but right now just the Ca reactor because I was having trouble getting a consistent flowrate through the kalk reactor (the valve was constantly clogging when I had it on the output, and when I had it on the input it wouldn't work either), so I just took it offline for a while. I was going to set it up again now that I have a dosing pump, but just haven't gotten around to it yet. So, all things being equal, my preference is to run both.