Originally Posted by kekon
I have very similar effects on some leaves. I use CaCl2 to reconstitute RO water. Ca is about 20ppm and chloride 35ppm. It seems to me it is too high.
No, don't assume these two are the same, they are not.
Free Chlorine and Chloride anions are very different toxicologically.
Let me ask a simple question, what's the difference between a chloride anion and chlorine anion?
Hint : it has to do with gaining an electron.