[Reefland]

Regardless of which measurement you used for alk (mEq/L or dKH), the chart would display mEq/L. I had to populate the chart function with the user selected alk measurement.

[YishiBenAvraham]

Again, thanks, Scott, for taking care of this so quickly. You are like a reefland jinni! It works great.

[Reefland]

And thank you for the heads up with the problem. Since i measur ein mEq/L, I would have never seen it.

[YishiBenAvraham]

I always record both dKH & alk mEq/L...not sure why. Why do you choose the latter? Any special reason?

[Reefland]

dKH and mEq/L are just the different ways to measure alkalinity of the water. They both say the same thing when multiplied/divided by 2.8.