Pick the feed this venue uses. The helper repeats the CDC model code rhythm. It is not your local code.
Read the longer note on how often to test, the chlorine and pH windows, or join the waitlist.
Test rhythm in the model code
- Before opening each day, test free chlorine or combined chlorine or total bromine, and pH (section 5.7.5.1).
- Manual disinfectant feed with no automated controller: also test free chlorine or bromine and pH every 2 hours while the venue is open (section 5.7.5.2).
- Automated disinfectant feed: test free chlorine or total bromine and pH every 4 hours while the venue is open (section 5.7.5.3).
- Total alkalinity is tested weekly (section 5.7.5.5). A numeric alkalinity window is not printed here.
- Calcium hardness is tested monthly (section 5.7.5.6). A numeric hardness window is not printed here.
Sources: 2024 CDC Model Aquatic Health Code, 5th edition (PDF) and CDC notes on operating public pools. Poolsheet is not part of the CDC.