Free pool chemistry tools
Start with your measured water test. Find the right chlorine target, understand your readings, or build a recovery plan.
Pool Health Check
Enter a water test and get a health score plus the next treatment step.
Open toolFC/CYA Chart
Look up the free-chlorine target, daily range, and shock level for your CYA.
Open toolGreen Pool Recovery
Screen a green pool and calculate a safe first chlorine dose from measured readings.
Open tool