Kalkwasser precipitating in dosing container

Aquavaj

Well-Known Member
View Badges
Joined
Aug 16, 2018
Messages
750
Reaction score
444
Rating - 0%
0   0   0
Started dosing kalkwasser with a doser from a dosing container that's not air tight and noticing precipitation. Does this decrease the potency of the kalkwasser or does it stay the same and I just lose volume?
 
OP
OP
A

Aquavaj

Well-Known Member
View Badges
Joined
Aug 16, 2018
Messages
750
Reaction score
444
Rating - 0%
0   0   0
A calcium carbonate skin will form on the surface of the kalkwasser as it reacts with CO2. If this is what you are referring to, It is normal
Yes, if I shake the container it'll break apart and settle to the bottom. So I'm assuming the concentration will remain the same inspite of this?
 

Midrats

Valuable Member
View Badges
Joined
Jul 16, 2015
Messages
2,099
Reaction score
2,304
Location
Madison
Rating - 0%
0   0   0
Don't disturb the crust. Just stir it once when you prepare a batch, let it settle, and dose it until it's gone. Repeat. The potency doesn't diminish much over a month.
 
OP
OP
A

Aquavaj

Well-Known Member
View Badges
Joined
Aug 16, 2018
Messages
750
Reaction score
444
Rating - 0%
0   0   0
Don't disturb the crust. Just stir it once when you prepare a batch, let it settle, and dose it until it's gone. Repeat. The potency doesn't diminish much over a month.
Gotcha. Thanks!
 

Miami Reef

10K Club Member
View Badges
Joined
Sep 8, 2017
Messages
12,222
Reaction score
23,039
Location
Miami Beach
Rating - 0%
0   0   0
Yes, if I shake the container it'll break apart and settle to the bottom. So I'm assuming the concentration will remain the same inspite of this?
You will decrease the concentration if you keep breaking the crust. Calcium hydroxide is soluble. CO2 entering will turn hydroxide into carbonate. Carbonate will form precipitate insoluble compounds when reacting with calcium.

As more CO2 enters, you will decrease the alkalinity and pH potency.

Keep it in a closed container, and don’t stir it after the initial mixing.
 
Back
Top