Reactor dosing kalk from topoff

[roggy23]

So I have a reactor kalk stirrer.. The tunze autotopoff pumps water into reactor then the kalk gets gravity fed into sump.. it’s not raising my ph to the levels I want. It’s about 8.15.. I think the evaporation is not fast enough to dose the amounts tank needed to get to 8.3… does this mean I should use a doser instead and if so how do I figure out how much to dose and how often to get to 8.3?

 

[Randy Holmes-Farley Verified Community Expert]

You should determine kalk dose based on tank alkalinity, not pH. In terms of pH you get what you get.

Are you measuring alk?

 

[roggy23]

Ya I’m at 8.5

 

[Randy Holmes-Farley Verified Community Expert]

Ya I’m at 8.5

Where do you want alk to be?

 

[roggy23]

Where do you want alk to be?

9

 

[Randy Holmes-Farley Verified Community Expert]

Then you can either check to see if the reactor is delivering saturated kalk, and up it if not and if possible, or just add extra alk another way, and not focus on attaining the pH via kalk (which often is not enough for some scenarios).

 

[roggy23]

Then you can either check to see if the reactor is delivering saturated kalk, and up it if not and if possible, or just add extra alk another way, and not focus on attaining the pH via kalk (which often is not enough for some scenarios).

Crap I tested today with running the kalk and my alk is up to 9.5… do I stop the kalk and only start it when my kalk lowers a bit?

 

[roggy23]

Oh I know I won’t add kalk to the reactor until it drops then add 1/4 cup until I get a feel of stability