Day 34:
Hey fellow growers,
I or better said my mate solved the mystery of the high pH I measured last week. This is quite a read so bare with me...
I couldn't get over it and pondered about it until the really late hours. So I asked my mate (he's a laborant assistant) to make me three new bottles of calibration liquids (4.01, 6.86 & 9.18) which are the values my pH pen needs for calibrating. He came over with the liquids and brought his labo (Fisher Accumet) pH tester with him. We made a water solution (pH 6.0) with the help of his probe and measured it with my pen. And behold it was a stagering 1.76 off measuring 7.76 pH. So we calibrated my pen with the new calibration solution and after a couple of try's it passed. Then measured the 6.0 solution and it was close enough (6.02) to what it actually was, but it wouldn't stay on that value... So my mate looked at the glass which was clean and not cracked. He then opened the battery case and turned the batteries around their axis while measuring and the values where all over the place!
We took out the batteries and saw one battery which was corroded and had white powder on it. It had leaked out and f#ck3d up the measurements.
I was so angry at myself for not checking that, you can't believe!!!
The really messed up thing was that it was to late to go to the store and buy new batteries... you wouldn't be surprised if I said that I didn't have much sleep that night. Next day went out with crutches and all and bought four new LR44 batteries, calibrated the whole damn probe again and behold... The different liquids my mate made the night before where all correct and on point.
So I must have given my plants a liquid which had a pH of probably 4.5 or below! I was ashamed and angry with myself and even pondered about not telling, but I learned a valuable lesson and did wanted to share it with everyone so this could probably help someone out in the future and that's why I'm telling this here with red cheeks
Calibrate your probe regularly and check your batteries if the value doesn't stabilize after one minute. Lesson learned!
Today two days after feeding the plants with the correct pH nutrient solution (I couldn't and still can't carry them down to the shower for a flushing with real pH 6.0 because of my back) they are still recuperating nicely and even show some sign of growth. Take a look for yourself
And here are some more detailed pictures...
Bruce Banner Auto
Sweet Amnesia Haze XL Auto
Regards,
B