Sodium bicarbonate

[Cory]

So my calcium has risen to 480 ppm from dosing limewater. Id like to bring it down.

So i want to dose baking soda in water. Ive got a 3 liter container. How much baking soda should i add to it? Also my doser can dose 1- 50 ml per day up to 24 times a day. How much would a 1 ml dose do?

 

[JimWelsh]

I assume you mean that you intend to dose only alkalinity, and just let the calcium level drop, yes? If so, then just use Randy's recipe #2, but just the alkalinity part. Since Randy's recipe is based on a gallon, which is about 3.8 liters, then multiply the amount of baking soda in Randy's recipe by 3/3.8 to adjust for your container size. Read Randy's article for answers to any other questions you might have.

 

[Gareth elliott]

So my calcium has risen to 480 ppm from dosing limewater. Id like to bring it down.

So i want to dose baking soda in water. Ive got a 3 liter container. How much baking soda should i add to it? Also my doser can dose 1- 50 ml per day up to 24 times a day. How much would a 1 ml dose do?

I honestly would just do a pwc, say a 10% pwc of 450 ppm sw. should bring you closer to something around ~467.
And then dilute your limewater you are dosing with more sw.
Edit fw if dosing through ato.
How much to dilute, would be based on your actual daily Ca usage.

If your goal is just to lower calcium anyway.

 

[Randy Holmes-Farley]

IMO, 480 ppm is fine, but dosing baking soda for a bit will allow the calcium to decline.

 

[Cory]

So id add about 233 grams of sodium bicarbonate to 3 liters of water to have approximately 2660 dkh? Sorry I suck at math.

 

[Randy Holmes-Farley]

So id add about 233 grams of sodium bicarbonate to 3 liters of water to have approximately 2660 dkh? Sorry I suck at math.

Yes. You can use this calculator to show that:

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

 

[Cory]

Thanks for everyones help!

 

[Randy Holmes-Farley]

You're welcome.

Good luck.