Nutrient lockout? Low PH/Soil growgrow

Just found out my tap waters PH is 5.4-5.6. My nutrients (MG bloom booster) also reads about that same PH. I have two plants about 4 weeks into flowering. Watered with 7.0 water and the runoff read about 5.8. Plants have been yellowing for about 3 weeks now. If this is in fact nutrient lockout is there anyway to save them? Am I always supposed to use PH corrected water? Will definitely be using lime in my soil from now on. Sorry for the bad pics.

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hello. usually in soil you don't need to worry about the pH. your picture seems to be showing N deficiency and then what looks like a K deficiency. what is your feeding routine?

Feed-Water-Water-Feed. Feed tested at 340 ppm so that would make sense. Only reason I suspected nutrient lockout was the dark color of the runoff and low PH.

I just upped the ppms to 750. Should I increase feeding now, and should I stick with the same type of feed even though it is low in nitrogen?

Undercovergrow just told you your issue. I use to check my soil PH but it was pointless. More is not always better. I usually half dose my gals. Better safe than sorry let. Good luck and remember, growing is suppose to be therapeutic.

Thanks for the reply. Just watered with tap. Runoff is brown and reads 1300 ppm. Is that normal? So confusing. Showing nutrient deficiencies, but I can't decide if it's from too much or not enough fees. I'm leaning with too much. Any opinions?