Cal Rx question

[ecam]

Background
Im running a CAL RX on my system. currently i have it setup at
1. fixed bubble rate and (6 bubbles per min)
2. a steady stream ( i add water until it just changes from a steady drip to a solid stream)

By fixing these two variables to constants it only leaves PH (probe is in first chamber of a dual reactor for added accruacy) as the lever for me to adj my CAL Rx -(much easier for me)
Adjusting - due to new growth
By testing the effluent that comes out of the reactor daily I see that the effluent is a solid 9 DKH coming out of the reactor at all times (i tested it various times during the past 4 days). My alk has been ticking up because it was originally at 7.8 when i tested last week (due to new growth)

Question
If the effluent is coming out at 9 dkh. and the flow rate will eventually turnover the tank in a 24 hr period (i have total system volume of 225). is it safe to say that my Alk can never go above 9 dkh?

I ask this question because, if that is the case, instead of testing the tank water, i could set the CAL RX affluent to my desired level. it would make adjustments easier. and also its always nice to know a max level when dealing with these things?

Thoughts?

 

[ecam]

@Randy Holmes-Farley

 

[Randy Holmes-Farley Verified Community Expert]

Question
If the effluent is coming out at 9 dkh. and the flow rate will eventually turnover the tank in a 24 hr period (i have total system volume of 225). is it safe to say that my Alk can never go above 9 dkh?

Yes, and unless the flow is very high, it will probably stay a lot lower than 9 dKH in the tank. If the tank alk is 9 dKH and you flow one whole system volume through the reactor in 24 h, the addition will only be 1 dKH per day.

 

[ecam]

Is there a good formula to determine the proper flow. I would love to be able to understand this relationship and use it to fine tune the reactor

 

[ecam]

At the 9 dkh from reactor. My alk has been creeping up from 7.8 last week to 8.6 this morning.

 

[Randy Holmes-Farley Verified Community Expert]

Is there a good formula to determine the proper flow. I would love to be able to understand this relationship and use it to fine tune the reactor

Better than a formula:

http://reef.diesyst.com/reactor/reactor.html

 

[GoVols]

Background
Im running a CAL RX on my system. currently i have it setup at
1. fixed bubble rate and (6 bubbles per min)
2. a steady stream ( i add water until it just changes from a steady drip to a solid stream)

By fixing these two variables to constants it only leaves PH (probe is in first chamber of a dual reactor for added accruacy) as the lever for me to adj my CAL Rx -(much easier for me)
Adjusting - due to new growth
By testing the effluent that comes out of the reactor daily I see that the effluent is a solid 9 DKH coming out of the reactor at all times (i tested it various times during the past 4 days). My alk has been ticking up because it was originally at 7.8 when i tested last week (due to new growth)

Question
If the effluent is coming out at 9 dkh. and the flow rate will eventually turnover the tank in a 24 hr period (i have total system volume of 225). is it safe to say that my Alk can never go above 9 dkh?

I ask this question because, if that is the case, instead of testing the tank water, i could set the CAL RX affluent to my desired level. it would make adjustments easier. and also its always nice to know a max level when dealing with these things?

Thoughts?

I tune in and run my cal reactor like the two below video's.

My 2 stage GEO came with an .5 Sicce reactor pump and I use the Sicce 1.0 for the feed pump and the continuous stream.


Output's stream: