how much sodium bicarbonate do I need for my swimming pool?

Question

I have a 64,000 gallon pool and I need to raise the alkalinity by 30ppm. It says 1.5 lbs for every 10ppm

Answer 1

You need to add 28.8 lbs. of Sodium Bicarbonate.
6.4 x 1.5 x 3= 28.8 lbs.

You should split the addition of bicarb in 2 additions over a 24 hour time frame ( to prevent clouding the water). Add with the filter running.

Answer 2

You need to use 28.8 lbs to increase your alkalinity. 1.5 lbs will increase your alkalinity 10 ppm per 10,000 gallons. So for your pool you use this calculation.
1.5 x 3 x 6.4 = 28.8 lbs
The 1.5 is the dose
3 is the amount you need to increase your alkalinity.
and 6.4 is your pool volume divided by 10,000.

Wen you add this you should add in directly to the pool surface with the pump and filter running. It is best to divide it into two doses and add about 4-6 hours apart. This will help to prevent any possible clouding of the pool water.

Also you do not want to add this chemical if you have increased your calcium hardness within the last 24 hours. If you do these two chemicals to close together it will cause the water to cloud and possibly form scale build-up.

One last precaution: If you have a heater on your pool you should also have your water tested for metals. If you have metals in the water, you need to resolve this first. If you don't you could possibly cause the metals to precipitate out and stain the pool.

Hope this helps you out.

Answer 3

4.5 lbs ???