My tap is darn near 8. Jacks took it down to 6.4ish. No cal mag. Same everytime, no Just water. This stuff works. I figured if the mothers acted up, I would slide them in the flower tent, I have new cuts to replace them with.My well water comes out at 7.0. If you don't gun it down a little, she'll lock out any nutrient you're trying to feed your ladies.
Everyone is happy in my tents...mothers, crazy chrimera 3 in its own tent, and flower tent.
This is a simple plan. Always the same. No messing with RO, no need to PH. Same mix EVERY water, except last two weeks just water. Have both veg and flower in different tents/gardens? They all get the same thing, every time.