Alk testing and PH probe calibration

[BAMatter]

Just re-calibrated the PH probe on my KH Carer after a month of use, which was also calibrated during setup. The red arrow on the chart is the calibration point. Curious to know why the chart has a tighter range in alk reporting, and what part of the chart may be more accurate, and why? I dose kalk 24/7 evenly over 96 doses, and am not dynamically dosing anything else, so I’m inclined to think the larger swing part of the graph is more accurate, but don’t know what I base that thought off of…

 

[Dan_P]

Just re-calibrated the PH probe on my KH Carer after a month of use, which was also calibrated during setup. The red arrow on the chart is the calibration point. Curious to know why the chart has a tighter range in alk reporting, and what part of the chart may be more accurate, and why? I dose kalk 24/7 evenly over 96 doses, and am not dynamically dosing anything else, so I’m inclined to think the larger swing part of the graph is more accurate, but don’t know what I base that thought off of…

Some thoughts.

The variation you are observing is small and I feel you would have a hard time explaining every up and down on the plot.

The upward trend after the red arrow seems like a significant change worthy of some theorizing but not too much. It is still a tiny change. It looks like the daily average is up a bit and the measurements are less bouncy. I will leave the “why” to you.

 

[BAMatter]

Some thoughts.

The variation you are observing is small and I feel you would have a hard time explaining every up and down on the plot.

The upward trend after the red arrow seems like a significant change worthy of some theorizing but not too much. It is still a tiny change. It looks like the daily average is up a bit and the measurements are less bouncy. I will leave the “why” to you.

I’m just gettin a bit uneasy letting all this tech control alk. I think I may go back to a simple 24/7 buffer dosing and let the tank do its thing with what’s available.