Does your CA Title 22 controller read a free chlorine residual?

There are some controllers out there stating Title 22 compliant that are either ORP or Calculated PPM based on a conversion from ORP and pH readings. Since there are so many variables effecting ORP, especially in outdoor pools using cyanuric acid, these are nothing more the guestimates. Protect yourself with actual Free Chlorine PPM readings.


California Title 22 Information Section 65523 – Operation Records.

(a) Except as provided in Health and Safety Code, section 116048, the pool operator of every public pool open for use at a public pool site shall test the disinfectant residual and pH of the public pool water a minimum of once per day. The pool operator shall also test heated pools’ water temperature a minimum of once per day. The pool operator may perform these daily tests using a properly calibrated automatic chemical monitoring and control system if approved by the enforcing agent and in accordance with the manufacturer’s equipment specifications for calibration and directions for proper use. The pool operator shall maintain a written daily record of all test results, equipment readings, calibrations, and corrective action taken at the public pool site.

Does your controller test the disinfectant residual?

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