This topic came up on the forums I frequent. The poster was what I would label a "very experienced grower" who had done a fair amount of work on the plumbing for his grow. Some time afterward, the grow was hit by something that he couldn't pin down. He thought the issue had a chemical basis so he jumped through a lot of hoops to fix things but it took a while to figure it out because it took a few months for things to go south.
The culprit was a brass fitting at the bottom of a tank, res, or some such that was in the plumbing upstream from the plants. He swapped it out and that cleared up the issue.
interesting! I actually have a brass fitting at the bottom of my tank res too. It’s an elbow joint that holds the site glass in place to keep an eye on the water level. Maybe that’s why my PH tends to drop over time..
Hows it going man? Checking in with ya hope all is well in your part of the woods. Harvest is only days away here and look at this little monster. That's what it should be named monster vegetation og lol.
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Awesome, plants are looking nice and healthy! Good luck with the harvest
I left town for a full week, just got back. My top off reservoirs were empty.. the PH was pretty far off too. Filled my tanks and adjusted the PH when I got back.
The indoor girl, Sandy, is gettin pretty close to harvest. Any day now I’d imagine. Trichomes are mostly cloudy. What’s weird is I’m seeing some foxtailing. Might have been the swing in PH while I was gone? Was at 3.4 when I measured it after the trip. Leaves near the top of the canopy have changed colors, some yellowing and purpling. Might be related to a water level drop while I was gone, though I hear color changes in the leaves close to harvest isnt that unusual.
Now Debbie on the other hand is growing like a straight up psycho. Come September she could be 12 feet tall LMAO . Some new pictures below: