Pool Chemicals and Water Balance

These tools tell you how much of a product to add. Enter the volume and your readings for chlorine, salt, alkalinity, stabilizer, calcium or pH, or check whether water tends to form scale or corrode with the Langelier index.

Tools in this group

• Chlorine Dosage Calculator — Work out the chlorine feed rate for a flow and dose, the product to disinfect a tank or well, a breakpoint dose or a CT value.
• Langelier Saturation Index Calculator (LSI) — Enter pH, temperature, calcium hardness, alkalinity and TDS to see whether the water tends to form scale or to be corrosive.
• Pool Chemical Calculator — Choose alkalinity, stabilizer, calcium or pH, enter the water volume and your readings, and get the amount of chemical to add.
• Pool Chlorine Calculator — Enter the pool volume, the current and target free chlorine and the product you use to get the amount to add, or check what ppm a dose will give.
• Pool Salt Calculator — Enter the pool volume, the current salt reading and the target level to get the pounds or kilograms of salt and the number of bags to add.