Pool Chemical & Dosing Calculator
Calculate exact pool chemical dosages for chlorine shock, pH rise/lower, and alkalinity balancing.
Interactive Calculator
1. Provide Details
gal
ppm
ppm
2. Output Results
12.5% Liquid Pool Shock Needed47.3 fl oz
65% Cal-Hypo Granular Shock9.0 oz (dry)
How to Calculate: Formula & Steps
Uses standard pool water treatment ratios per 10,000 gallons of water volume.
Formula Used:
Liquid Bleach (oz) = (Target FC - Current FC) × Pool Gallons / 10,000 × 10.5 ozStep-by-Step Calculation Example
Raising Free Chlorine by 3 ppm in a 15,000 gallon pool requires approx 47 fl oz of 12.5% liquid pool shock.
Common Mistakes to Avoid
- Adding acid and chlorine simultaneously, which produces toxic chlorine gas fumes.
Practical Use Cases
- Weekly pool water balancing
- Clearing cloudy green pool algae outbreaks
Expert Tips
- Always add chemicals to water (pour into pool deep end), never pour water onto concentrated dry chemicals.
Frequently Asked Questions About Pool Chemical & Dosing Calculator
What is the ideal Free Chlorine level for a pool?
The ideal Free Chlorine level is 1.0 to 3.0 ppm (parts per million).
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