Recalibrating salt level with Hayward S3 Turbocell and OmniPL?

[Guy559]

Appreciate all the early advice on here as I made the transition from new pool startup to saltwater at the 28-day mark following plaster. Happy to report that pool is looking great and everything is largely in balance.

One question: I read in Hayward’s Aquarite manual that with older systems you could input a correction factor so that the SWCG would display the correct saltwater ppm value. I’m using a Hayward OmniLogic-based system with the newer Turbocell S3 (40,000-gal). Have found the chlorination page but seems you can only reset the cell’s lifetime counter or change polarity on the cell…don’t see a way to apply a correction value for saltwater sensing calibration.

In this case, my TFPro-Salt kit is routinely showing 3,000ppm salt but SWCG estimating it at 3,400ppm. Not a huge deal and recognize that TFPro kit is giving me the most accurate result. Just wondering if I can calibrate to bring the new S3 cell inline with test results.

 

[JamesW]

I read in Hayward’s Aquarite manual that with older systems you could input a correction factor so that the SWCG would display the correct saltwater ppm value.

There was never a correction factor available.

The readings are close enough.

 

[JamesW]

TFPro-Salt kit is routinely showing 3,000ppm salt but SWCG estimating it at 3,400ppm.

Tests are +/- about 200 ppm.

The level is probably between the two values.

Never assume that any test is giving you an exact number.

Just wondering if I can calibrate to bring the new S3 cell inline with test results.

No.

 

[ajw22]

 

[Guy559]

There was never a correction factor available.

The readings are close enough.

Appreciate it. Actually, the older system could calibrate: Hayward Recalibrating Aquarite Cells

Understand the remainder -- 'close enough for government work'!

 

[Guy559]

I'm definitely impressed with chlorine generation via SWCG. If I'm by my equipment pad w/ cell generating (VSP at about 45%) I can easily hear the generated gasses streaming through the pipes...and can see the stream through the see-through transparent blue body of the S3.

Did a couple OCLTs just to see how the SWCG is performing. VSP running 24/7 and had the S340 cell at 50%. Was concerned that since pool is ~32k that cell would underperform but I've seen FC go up day after day, so I've backed it off to 25% for the time being. As I understand it, I'll likely need to bump back up as we near summer w/ longer (and higher) UV days and higher heat/hotter water.

 

[JamesW]

That is not a calibration procedure.

It is simply updating the Average Salinity with the Instant Salinity Value.

 

[ajw22]

Appreciate it. Actually, the older system could calibrate: Hayward Recalibrating Aquarite Cells

Understand the remainder -- 'close enough for government work'!

That blog entry misuses the word "recalibrate".

That procedure resets the average salt reading to be an instantaneous salt reading. Nothing is recalibrated and the Aquarite will change the average salt reading as it runs.

 

[Guy559]

Ah, I see that now. Thank you!