Stir Kalkwasser?

[Terry4505]

I will try to keep this short...

I have a 180 and 420 plumbed together with various other tanks (frag, sump, fuge, etc.) totaling about 800 gallons or so. I dose BRS Two Part via a Jebao dosing pump, and Kalkwasser via the same dosing pump. I struggle to keep my PH above 7.9-8.0.

I pre-mix my kalk in a 10 gallon container, which then settles into a semi-clear solution. Should I throw a small pump in the kalk reservoir and have the Apex stir it up every hour or so?

Here is a link to a video of my fish room:

 

[Randy Holmes-Farley]

No, Stirring it only serves to drive in CO2 faster, depleting it. It is perfectly fine just sitting there (closed).

 

[harley32907]

Mine is in a reactor, I have it programed to stir for 15 seconds every 4 hours, if this helps.

 

[Randy Holmes-Farley]

Mine is in a reactor, I have it programed to stir for 15 seconds every 4 hours, if this helps.

Just to be clear for everyone, you need to stir because you are using the stirring to dissolve the calcium hydroxide constantly because you are adding new fresh water constantly.

In his application, he is making a settled reservoir and drawing from it with no water addition, and so needs no stirring.

 

[reefinusa]

Just to be clear for everyone, you need to stir because you are using the stirring to dissolve the calcium hydroxide constantly because you are adding new fresh water constantly.

In his application, he is making a settled reservoir and drawing from it with no water addition, and so needs no stirring.

That’s interesting. I just purchased a reactor to raise my ph and have it tied directly to my rodi line. It is dosing at about 2 mL of water per minute, but is constantly stirring. Should I set it up to stir less?

 

[Randy Holmes-Farley]

That’s interesting. I just purchased a reactor to raise my ph and have it tied directly to my rodi line. It is dosing at about 2 mL of water per minute, but is constantly stirring. Should I set it up to stir less?

If solids are not getting into the dosing line, and if you need to dissolve as much as possible, that's a fine plan.

I assume the delivery is well below daily evaporation? Don't want the tank overflowing if the evaporation is reduced in the future.

 

[GainesvilleReef]

The liquid at the top of the reactor where it exits should look clear. If not you are stirring too much.