gnomecommentedweek 259 months ago
Well I ordered an electronic PH and a TDS/EC meters. I usually use Ph fluid I find it more consistent, but figure I'd double check anyway . I've 2 old TDS meters same brand they measure with in 30 ppm of each other, but their buttons are getting touchy so I got a new TDS pen. Took a reading from my veg res old pen : 169 ppm new pen: 170 ppm ok cool everything is kosher. I put new pen in bloom res 2480ppm (wth??) old pen 104 ( x10) or 1040ppm. I'm guessing the older pens are accurate in a certain range? This strain doesn't mind hot nutes luckily but I like tds range of 800 - 1200ppm.
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