Raise free chlorine by the amount you choose with the product you have on hand.
How it works
Uses a per-ppm dose from a county health department table and scales it by gallons and rise. Bleach strengths are scaled from the 10% figure.
Before you order
- Check pH first, since chlorine works far better near pH 7.4.
- Stabilized products add cyanuric acid, so test it regularly.
- Pour liquid chlorine slowly into the return stream.
Common questions
Can I use regular bleach?
Plain unscented bleach works if you know the strength. Avoid scented or splash-less versions.
How often should I dose?
Test regularly and keep within the range for your pool. Hot weather and heavy use burn chlorine faster.