CDC MODEL AQUATIC HEALTH CODE

TESTS AND TESTING FREQUENCY FOR PUBLIC AQUATIC VENUES TEST FREQUENCY:

Free Cl Opening and every 2 to 4 hours
Combined Cl Opening and every 2 to 4 hours
pH Opening and every 2 to 4 hours
Total Alkalinity Weekly
Hardness Monthly
Cyanuric Acid 24 hrs after addition and every 2 weeks thereafter
TDS Quarterly
Copper As recommended by manufacturer of reagent/system
Iron Weekly

According to the Model Aquatic Health Code Steering Committee:

“Where portable spectrophotometer test kits are affordable, these are the most accurate kits available for use at poolside.”