OH cool! That's the exact dosing pump I was planning on/thinking about using. I was intending to us an ato controller to detect high/low in the sump and turn on the dosing pump as appropriate.Nothing fancy. I use a brs 50ml minute doser on a digital timer. I dose 7200 ml daily which is just a bit less than my evap rate. I use a 20g brute container to store kalk.
Hmm, 20 gallon brute. That's a fair distance of head height for that little pump to pull from, that's cool it is strong enough for that.
Thank you for that very useful information and experience!