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9/24/2022
Plain Water.
pH:6.50
PPM: 240
EC: 0.293
Plants began to yellow. I decided to check the runoff, which was 7.33. After about an hour of flushing with plain tap water, the pH did not drop. My tap water was now 240ppm instead of 110ppm. I believe they have switched to well water, which, according to https://www.masterclass.com/articles/alkaline-soil, results in high soil pH. I made the decision to purchase a RO unit. Water is coming out at 10ppm, so hopefully GH Feeding will be here by EOW so I can be adding calcium back.
9/27/2022
Prepare 8L of 1/8 strength week 6 nutrients.
- RO Water: 10ppm
- FERRARI GOLD: 222ppm
- SUPER GROWTH: 532ppm
pH:5.80
PPM:764
EC:1.06