Title 22 Swimming Pool

Title 22 swimming pool is here in California and after a long, drawn out process, we are finding many health departments are starting to write citations for public pools and spas for not having the daily records for Free chlorine, pH and Temperature. Pool operators are starting to get approval from owners Title 22 chemical automation and data recording systems.

There is still some confusion on the requirements and there are some systems that have come out labeled as Title 22 compliant. Unfortunately, many of these systems are using a CALCULATED PPM RESIDUAL based on ORP & pH which is not recognized by the code. Below is an excerpt from the code:

§ 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.

(c) The pool operator shall test combined chlorine at a frequency required to maintain maximum combined chlorine concentrations below 0.4 ppm. The pool operator shall maintain a written record of these test results and all corrective action taken at the public pool site.

(e) The pool operator shall maintain a test kit for measuring the disinfectant residual, pH, and, if used, cyanuric acid concentration at the public pool. This test kit shall be available for use by the pool operator and the enforcing agent at all times the public pool is in use. The chlorine or bromine test kit shall be the diethyl-p-phenylenediamine (DPD) type or otherwise be capable of testing free-halogen residual. Chlorine test kits shall be capable of testing for free chlorine and total chlorine, such that combined chlorine concentrations can be determined.

The problem with calculated PPM are the variables affecting ORP such as pH, cyanuric acid, sunlight intensity and combined chlorine. Calculated PPM algorithms can be fairly accurate in indoor facilities but outdoor pools using cyanuric acid (conditioner) will the readings will be inconsistent as the level of ORP activity will vary greatly depending on cyanuric acid levels, sunlight intensity and night time.

In order to keep operation costs down with these outdoor pools it is required to keep cyanuric acid levels in the 80-100 ppm level which is is the maximum allowable in a public swimming pool. ControlOMatic has spent the last 3 years developing a FREE CHLORINE sensor using DPD which automates the testing of FREE CHLORINE which is both economical and reliable in order to overcome the limitations of ORP. Now we are able to use this to help pool owners and operators with a cost effective solution with title 22 swimming pool requirements.

Now that several systems have been installed in the field, we have found it to be very accurate when installed and used properly.

Whenever considering a chemical automation system for use in California, make sure it has the ability to measure FREE CHLORINE plus record and present data for the record keeping requirement. California Title 22 swimming pool requirements are law so protect yourself from health department shut downs and the high cost of daily manual measurements.

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