I pulled a sample of tap well water still running about 6.2 ph an conductivity about 120 Umho.
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@HornHead. I’m using well water and it usually runs about 7.6 ph. My ppm’s are running 130ish but I have a higher sulphur content. I also get the white residue on evaporation.
When mixing i’d Just ph after nutes and feed the girls.
I have noticed some slight swings in ph seasonally but no big deal. Peace for now. 
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