Find the product dose to reach breakpoint based on your combined chlorine reading.
How it works
Multiplies combined chlorine by 10 for the free chlorine rise, then applies the per-ppm dose from a county health department table.
Before you order
- Test free and total chlorine before you dose. Combined is total minus free.
- Add at dusk with the pump running, away from skimmers and liners.
- Keep swimmers out until chlorine is back in range.
Common questions
What is breakpoint chlorination?
Adding enough chlorine to break apart chloramines. The rule of thumb is about 10 times the combined chlorine.
Why is my product different?
Strength varies by product, so the product label comes first when it gives a dose.