I think I understand the advantages the Sole has over the Kamoer (controllability, compatibility with hydros ecosystem, and heavy duty industrial design that uses 1/4” RO tubing). I’m just having a hard time pulling the trigger on a $300 dosing pump for kalkwasser (albeit a very “nice” one). Likely way overthinking this.
I’m feeling it’s time to just buy once and cry once here. I’ve been planning to do this for months! ATO kalkwasser addition is working ok(corals responding positively vs A4R alone). It just worries me that my ato pump will foul and fail and seeing the spikes in the pH (ph probe downstream from ato kalk effluent in sump) with each top off addition makes my eye twitch!

This is one of those posts I’ll look back on in 6 months with some wisdom. I’ll try and report what I learn back here!