New Grower pH reading

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Hello to everyone,
I have a quick pH question(yes another one sorry!)
I am using a pretty good aquarium type meter.
I had some probs with lockout in my plants.
I flushed both with tap water at 6.9/7.

I take some soil day after flushing, mix with some water and leave for half an hour before I take my measurements.
after flushing the pH is reading 6.9(this is ok, yes?)
My nutrient solution is 5.8 when mixed.
I have also taken a measurement with some soil mixed with nute solution and it is 6.2.
My question is - In order to maintain a good soil pH when I feed should I raise the pH of the solution to 6.9 or more or somewhere in between??

My plants are about 3 weeks into flower and I'm using AdvancedNutrients Bud Bloom powder.
Thanks for help!!
:peace:
 
6.9 ph is ok but around 6.5 is better.Lower your 5.8 soulution about 3 points and this should bring your runoff to 6.5 or close.Any ware in the middle sixes is ok. :smokebuds:
 
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