Calculator accuracy review
Pool Shock Calculator
Calculations are temporarily unavailable while we validate this tool.
Calculator temporarily unavailable
We are reviewing calculator accuracy and input validation. No volume, chemical dose, or treatment sequence is being provided. Do not use earlier results to add chemicals. Follow your product label and consult a qualified pool professional with fresh water-test results.
If you saved or copied an earlier result, do not use it to treat your pool. A current water test and the exact product instructions are needed before choosing a dose.
Testing and measurement
Start with reliable information
Use FAS-DPD for high chlorine readings and a CYA turbidity test before shocking.
Keep the product label available, never mix pool chemicals together, and ask a qualified pool professional if you are unsure how to interpret a reading.
Companion Guide
When and How to Shock Your Pool
The companion guide remains available for background reading. Its examples are not a personalized dose or a substitute for product instructions.
Read the guide