Recharge does it really fix pH probs
Sort of, but only after the Rhizo/mycorrhizae is established it will help in buffering growing medium from Ph swings in the root zone. Nowhere near as effective as Growers Diligence, some pH Up and pH Down and a decent pH Pen.
I notice an immediate difference in the plants appearance on the days I use it. I am not sure what they state, but it looks like it assists in the nutrient uptake. It is good stuff.