What is the conductivity of saturated limewater at 15.5°C?

[ReefDreamz]

My kalk reactor is in my basement and it's about 60°F down there. What should be the conductivity of saturated kalkwasser at that temp?

 

[Randy Holmes-Farley]

At 25 deg C it is about 10.3 mS/cm. At lower temps it will be a small bit higher.

 

[ReefDreamz]

At 25 deg C it is about 10.3 mS/cm. At lower temps it will be a small bit higher.

Does 11.6 mS/cm seem in the ballpark for 15 deg C?

 

[radreef02]

At 25 deg C it is about 10.3 mS/cm. At lower temps it will be a small bit higher.

Didn’t want to start a new post for this.

I have been trying to get my kalk stirrer to work KS-100 from reef octo , I run it every hour for 15m (default recommends no more than 10m) and I dose 2300mL a day
I even replaced the motor and still no change

It never seems to bump alk or pH. Just keeps ph @ 7.9-8

I tested the EC today and converted it to mS/cm and it’s 4.8 at lower temps AFTER the unit got done stirring.

Time for new kalk stirrer ?

 

[Randy Holmes-Farley]

Didn’t want to start a new post for this.

I have been trying to get my kalk stirrer to work KS-100 from reef octo , I run it every hour for 15m (default recommends no more than 10m) and I dose 2300mL a day
I even replaced the motor and still no change

It never seems to bump alk or pH. Just keeps ph @ 7.9-8

I tested the EC today and converted it to mS/cm and it’s 4.8 at lower temps AFTER the unit got done stirring.

Time for new kalk stirrer ?

Make sure your meter can read saturated kalkwasser to be higher by dissolving/suspending 2 tablespoons calcium hydroxide in a cup of ro/di and see what you get.

 

[radreef02]

Make sure your meter can read saturated kalkwasser to be higher by dissolving/suspending 2 tablespoons calcium hydroxide in a cup of ro/di and see what you get.

Will try that, thank you. It seemed to have impact on alk but not ph so much. Can that actually happen ?

Alk has had no additions but kalk since last test

 

[Randy Holmes-Farley]

Yes, the pH can be mitigated by high tank aeration.