Balancing salt - testing vs IntelliChlor reading?

[forcetrainer]

Into my first full season with the pool, and I finally got to get my SWG (Pentair IC40) up and running. It couldn't have come sooner because I was tired of buying chlorine

The IC40 has a recommended level of 3600ppm. I'm consistently testing with my TF salt test at 3400, but the Intellichlor is registering below that. It was about 400ppm off, but today it crept up to 3200ppm. Is it better to balance to the chemical test or Intellichlor?

I'm guessing if they're 200ppm off it's well within a testing margin for error, so balancing to either is probably fine. But, always like to hear from the collective on this!

 

[Bperry]

Into my first full season with the pool, and I finally got to get my SWG (Pentair IC40) up and running. It couldn't have come sooner because I was tired of buying chlorine

The IC40 has a recommended level of 3600ppm. I'm consistently testing with my TF salt test at 3400, but the Intellichlor is registering below that. It was about 400ppm off, but today it crept up to 3200ppm. Is it better to balance to the chemical test or Intellichlor?

I'm guessing if they're 200ppm off it's well within a testing margin for error, so balancing to either is probably fine. But, always like to hear from the collective on this!

The tolerance for the drop test is +\- 200ppm and the tolerance for the cell readout is more than that. If the cell isn’t complaining about low or high salt, leave it alone. But use the drop test before adding/removing salt to the water.