Mixed a 3 gallon batch of Jacks plus gypsum.
500 scale.
tds Before gypsum.
589
tds After adding 1.5 grams of gypsum.
655
For a 66 tds increase.
Note: I added the gypsum BEFORE calnit. Calnit last. Hope that’s otay.
This. Cut I half for 3gallon mix.
I had to dilute with about a gallon of RO to bring ppm down to to 700. 1.4ec.
PhD to 6.25
Also using ArmorSi and Rhizotonic.