How to dose Kalk with dosing pump based of pH probe?

[FireEMT]

I have heard thats its possible to dose Kalk based off your pH probe. To write some code saying if pH drops below some value then to dose Kalk from a separate container. Is this something that works. I currently dose 2 part but want to add some Kalk to boost pH to help battle some Dino. Any information would be appreciated.

 

[Randy Holmes-Farley]

I definitely would not use a pH probe, except to stop dosing in emergency overdose.

Most people can let it dose close to the evaporation limit without any excessive pH issue.

 

[FireEMT]

So your recommendation would be to just add it to the ATO reservoir? My ATO pump sits right on the bottom of my 5 gallon container. How much would I have to raise it off the bottom and how much Kalk should I add each time? Thanks in advance for the information.