How does the swimming pool pH regulator work?

It must be acknowledged that installing a swimming pool pH regulator in the technical room brings greater comfort for bathers, more freedom, less intervention for the owner, and provides the satisfaction of water under control through water quality monitoring and device reliability. To enjoy all the benefits of this equipment, it is essential to have a basic understanding of its operation.

What is the operating mode of the swimming pool pH regulator?

The role of the pH regulator is to analyze, control the pH of the pool water, and adjust its level based on the recorded setpoint.
The regulator operates in 2 phases: it measures the pH level of the pool water at a given moment using a probe, and then it analyzes discrepancies between the pool pH level and the defined setpoint, correcting it by injecting pH+ or pH- liquid. The regulator is connected to the pool filtration system, so it is essential for the filtration system to operate long enough and proportionally to the water temperature for the device to perform optimally.

Step 1: Measurement of the pool's pH level

To test the pool's pH, a probe, electrode, or analysis chamber is installed just after the pool filter. The measurement is taken at a specific moment, several times a day.
The probe can be placed in a probe holder, in which case the cell is directly immersed in the return line. When the probe is installed in an analysis chamber, part of the return water is diverted to a container (analysis chamber) where the probe is immersed. There is less turbulence, fewer small debris, and less friction on the probe's bulb, resulting in more accurate analysis and no risk of the probe being out of the water in case of pump priming issues.

Step 2: Analysis and correction of the pH level

The measurement taken by the probe is transmitted to the electronic control unit, which analyzes the result. If there is a deviation from the setpoint, automatic regulation is triggered. The pH dosing pump of the pH regulator drives the suction and injection mechanism of the corrective product.
Depending on the models, the pump can be electromagnetic, peristaltic, or solenoid.
The regulator withdraws the right amounts of pH based on the actual needs of the pool. Its goal is to restore the calibration level set during programming.
The regulation occurs automatically, provided that there is sufficient liquid pH in the container!
Once the corrective product is drawn from the container through the tube and dosing pump, it is directed to the injection probe installed on the return line. Depending on the regulators, injection can be cyclic, proportional, or sequential.

The operation of the swimming pool pH regulator is quite simple. It requires minimal attention, and only the liquid pH container needs occasional refilling. As the pH regulator is linked to the filtration pump, it is essential for the pump to be running for the regulator to fulfill its mission.

Discover in detail what the swimming pool pH regulator is. Analyze the advantages and disadvantages of the swimming pool pH regulator as well as the characteristics of the pH regulator to fully understand its operation.

An essential element of the pH regulator, the measurement probe for the pH regulator allows you to measure the pH level of the pool. Learn how to install and maintain the probe to ensure it functions optimally.

Finally, to better understand what a swimming pool pH regulator is and help you choose the right one, you will find below how to choose the swimming pool pH regulator, how to install the swimming pool pH regulator, and how to maintain and winterize the swimming pool pH regulator.