Ca Reactor dkh too low

[AlohaTropics]

Hey, anyone know why my Korallin Ca Reactor's effluent is only around 20dkh? It should be reading 30-50dkh. The CO2 is running at nearly 30 bpm and the effluent is just pouring out right now because the dkh is so low. The reactor is 80%full of aragonite/magnesium mix. What could be my problem?

 

[ming]

If the effluent is coming out too fast, the PH becomes too high, therefore the dkh will be lower because less of the media melted. What is the PH of the effluent?

 

[AlohaTropics]

That makes perfect sense Ming! My pH is a little high, its 7.3. What do you think is the best setting for Ca & Drip? I'll lower my drip to 1 per second and see how it goes. Thanks bud!

 

[juiceguy]

try getting the ph to 6.7 and re-test after a few hours to dial in the reactor.

 

[ming]

Everything I read says 6.7 is ideal, but my media tends to stay more solid and less like mush if I keep it 6.9-7.0
When the media turns to mush, it gets very powdery and can easily clog the effluent which makes it hard to have a constant drip.
Keeping it a higher PH like 7 will waste more co2 though, but $15 every 6-9 months is no big deal to me. I keep my effluent at 7 personally, and I have the korallin 3002 model. My effluent is coming out pretty much like a thin stream of constant water though

 

[juiceguy]

i know 6.7 is the consensus on most reactors. i use the rowalith media and it requires the ph between 6.1-6.5 to really dissolve the media, i use more C02 but i only run my reactor 10 hours a day