Case 1 - using local Reverso Osmosis water it has a PH of 7.2 with an ppm and EC of almost nothing which is what you want with RO.... when adding DNF A and B at a rate of 5 ml of each per liter the solution has a PH of 3.8 WOW OH NO
Case 2 - using my well water it has a PH of 7.4 and a PPM...