This calculator helps you determine how much baking soda (sodium bicarbonate) to add to raise total alkalinity (TA) or how much muriatic acid to add to lower it. Just enter your pool size and current/target alkalinity levels.
Keeping your pool’s TA in the right range is essential for pH stability and overall water balance. Low alkalinity can lead to rapid pH swings and corrosive water, while high alkalinity may cause cloudy water and scaling.
If you need help determining your pool’s volume, use our pool volume calculator.
The calculators above are based on the following:
- 1.5 lbs of sodium bicarbonate raises TA by 10 ppm in 10,000 gallons
- 25.6 fl oz of 31.45% muriatic acid lowers TA by 10 ppm in 10,000 gallons