CANNA Aqua ph issues, anyone else having/had same issue

I just recently switched from the Technaflora BC line, which I love and recommend, to the CANNA Aqua line. Im having some MAJOR ph problems. When I mix the sauce up, I get a ph reading of 4.3!! I let the sauce sit a few hours like instructions say, even overnight, still have a low ph. With the BC line, u mix it up and the ph is right at 6.1-6.2, the ppm seems to be spot on, just the ph is way of. Im using filtered water from those windmills u see. Thanks for any input

The reason the nutes are going so low is because the water is very soft and also you must be using full dose. I use canna aqua too with NFT. Expect the ph to drift up after you adjust it accordingly. I have a question about how necessary cannazym and boost are.