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The inside door panel does not have a label. To clarify, the controller was a very old AquaLogic system. I did what was called an "OmniPL retrofit" in February 2025. If there is a label with the serial number, I'm not seeing it. The first seven characters on the salt cell are "1E24305." It was...

To clarify, I'm not aware of any problems with the new salt cell. It appears to be working very well, in fact. I don't know how to find the serial numbers you're asking about, but the cell average reading is 5300. For comparison, the TF salt test and the C-600 meter both gave me 5400.

Fair point… To clarify, the 5300 number is from the Hayward controller. The TF test (10 mL) and the C-600 meter both gave me 5400; I figured it was close enough to be within 100 ppm. Good to know about lower TA… Thanks for the clarification.

First of all, I want to express my gratitude for this site and the folks on it. It has been an invaluable resource as I'm taking over doing pool maintenance myself. A little backstory: I ditched three different pool cleaning services in less than a year (all with at least a 4.9 out of 5 star...