Help with calcium reactor

mpekoske · Oct 25, 2020

Sorry as I have never used one before... have it hooked up to the apex with if ph > 6.9 then on and if ph < 6.8 then off. My question is it seems like that makes my co2 regulator turn on and off every couple minutes... is that normal?

BYU · Oct 25, 2020

i run mine if >6.9 then on and 6.5 off
so far so good
my graph looks like this

MrWheelock · Oct 25, 2020

Yes thats normal, but turn out the fine adjustment screw on the regulator out a tiny bit to slow the flow of C02. If set right your solenoid will not have to open and close constantly or at least not as much.

mpekoske · Oct 25, 2020

It seems like it is set at a bubble every 5 seconds... should I turn it down more

mpekoske · Oct 25, 2020

Think I have something wrong in settings still... as of now my ph goes between 6.9-6.92 ... not sure why it shuts regulator off when it falls below 6.9 when it should stay on until it reaches 6.7

BYU · Oct 25, 2020

mine is set to 1 bubble ever 2 seconds
using carbon doser

mpekoske · Oct 25, 2020

Thanks I’ll try removing my line 2 (set off) and see if that fixes it... thank you everyone for your help

jda · Oct 25, 2020

Save yourself the time and learn how to tune the thing by hand. Cycling with a pH controller is no good.

I have not used a pH controller in a long time and a CaRx is best run 24/7 uninterrupted without one. There is a paper in my signature that you can read if you want on how to do all of this. It is easy and more reliable.

vetteguy53081 · Oct 25, 2020

Norma;. Just assure the effluent is properly set and flow to sump has stopped

AcanthurusRex · Oct 25, 2020

jda said:
Save yourself the time and learn how to tune the thing by hand. Cycling with a pH controller is no good.

I have not used a pH controller in a long time and a CaRx is best run 24/7 uninterrupted without one. There is a paper in my signature that you can read if you want on how to do all of this. It is easy and more reliable.

This is what I did. Not difficult.
However, I bumped the needle valve without noticing; I will be adding a PH probe to monitor the CARx so when I do something stupid again I will get an alarm.