Same here, shutdown until after blazing hot summer!
Did the good dr. give you a definitive answer on the calcium question? Is the the Ca in well water to large of a molecule for plant absorption?
she actually never answered. but i sent a PM to our resident chem expert @cannabineer and he told me that is just an old grower's tale. the calcium carbonate in my well is used by the plant.
so far not dropping pH by itself. let it mix for 24hrs and pH was still at 6.9 dropped it to 6.1 and gonna see how it goes.
@TintEastwood they aren't kidding about this!! holy crap, it stays stable for a few days and then drops into the mid 4's. not too happy with that at the moment. gonna try to run it with Si and see if that helps it stay closer to range longer. if not, this might not work too well.
Hmm. Weird, to me. Having used tap, RO and a combination of both for the past 3 years in coco, I have never experienced my PH creeping down. GH, Megacrop, Jacks...It's always creeped up. (faster or slower creep based on how stable)
i ordered a bottle of GH floranova last week to have on stand-by if I can't get this to get under control a bit better.
Si is nice for bringing ph up, I just don't know how long it buffers for. as long as its in your res right? From my experience, if I don't add si first it'll lock some shit out in the end. Fwiw
yeah, i try to add it first . but i took the amount i needed and diluted it in a gal of water before adding to res. kinda just wanted to see if it would help at all. and i think it buffers as long as it's in there. i do DTW so it's always in the res.
you should be fine. I would have to guess nutrients just don't like the shock of ph going up or down too fast. so diluting it so your ph doesn't change drasticly over seconds when u add the si to your res would be a good idea.