PH Balance

Question

I filled my reservoir with 60 gallons of tap water (29x70x9″(approx) (will be non active with soap stones)–added Hyd Peroxide, Epsom Salts, Citrus–then General Hydroponics 3-2-1 solution. I started with 7 PH water–let it sit and dechlorinate –today I went to measure PH and it was 2.9!!!!! Added about 1/2 bottle of pint of PH up–just got to 3!! Can it take that much or am I doing something wrong? The unit is outside in a covered location with screen walls and clear corrugated roof.

Answer 1

No, it shuoldn't take that much. These articles should help:

https://extension.okstate.edu/fact-sheets/electrical-conductivity-and-ph-guide-for-hydroponics.html

https://extension.psu.edu/hydroponics-systems-and-principles-of-plant-nutrition-essential-nutrients-function-deficiency-and-excess