To decrease alkalinity by 10 ppm in 10,000 gallons of water, how much sodium bisulfate (dry acid) is required?

To decrease alkalinity by 10 ppm in 10,000 gallons of water, it is necessary to understand the relationship between the amount of sodium bisulfate added, the volume of water, and the change in alkalinity. Sodium bisulfate is commonly used in swimming pools to lower both pH and total alkalinity.

The typical dosage for lowering alkalinity is approximately 1.5 pounds of sodium bisulfate per 10,000 gallons for a decrease of around 10 ppm. When managing pool chemistry, it’s important to apply the correct amount of chemicals to achieve the desired effect without overshooting, which can result in disruptive changes to water balance and potentially affect swimmer comfort and equipment.

Therefore, if a 10 ppm reduction in alkalinity is targeted for 10,000 gallons, 1.5 pounds of sodium bisulfate is generally considered appropriate according to standard industry practices. This dosage reflects the necessary calculations and established guidelines for treating pool water effectively.