Was getting 5.4 pH everytime I mixed ADVANCED NUTRIENTS SENSI COCO PH PERFECT A & B 16 ml each and instead of the normal 16 ml part B I used 22 instead. The result was a rise in the pH to 6.2. The pH held at that level after the addition of 7 amendments. I always mix an equal amount of distilled water to the mixed solution & mix. pH was on 6.2 looking like it wanted be 6.1 but I digress. 1.4 EC after dilution. The only explanation is the product had been tampered with & replaced with water, I HOPE, sure wasn't weed killer lol. So good news with 3 weeks flowering left, at least, before flush. Had faith in Advanced Nutrients but I need 6.2 or so for Bloom. I got my pH pen cleaned up this week & with calibration done & I was mixing. Maybe all of the stress on the plant will make it better. Any thoughts?
Long time AN user here with about 50 DWC grows under my belt since '01 when I started with the old AN 3-part before pH Perfect. When I finally ran out of my gallon jugs I broke down and tried the Sensi for grow and the Connoisseur for Bloom. I was not impressed and prefer the control I get with the 3-part so went back to that and bought gallon jugs of each.
You really shouldn't mess with the pH of those nutes or it buggers them up. Just accept that the tech works and trust them to do their job. I got to where I never changed nutes at all from clone to harvest and the plants grew just fine adding small amounts of nutes as I went along to keep my ppm in my target range. Never checking the pH and only using RO water.
What makes you think that you need pH 6.2 for flower specifically? With the older nutes I'd top up my tubs every 3 days with RO then test ppm and pH. The pH had usually risen to around 6.2 so I'd knock it back to around 5.4 with a few drops of conc sulphuric acid and in 3 days it was back to 6.2ish. It was always really regular that way. Once I got the new nutes I'd just check ppm and adjust as needed.
We're using RSO around here too. The wife got diagnosed with liver tumours so I got her on it right away and now they have shrunk and/or not growing so it's just a scan every year to keep an eye on them. Her last eye exam to monitor her glaucoma showed her number had dropped well back into the normal range too. My prostate had enlarged to 75cc and after 4 months of taking small doses before the last MRI in August it had shrunk back to 55cc when it was 60 CC at the first MRI 3 years prior. Almost all my urinary problems have also gone.
I've been giving it to a buddy for 4th stage prostate cancer but he seems to be relying more on doctor's meds. I'd be eating that stuff by the teaspoon but he doesn't use much more than I do and I'm on a low dose once every evening. Made some CBD oil that I'm adding to it as CBD fights cancer too. I had a small squamous cell carcinoma removed from my rt. leg 30 years and last year had 3 bits taken off my legs but they turned out to be a type of wart so no cancer there. Pale skinned redhead here in my late 60s so the sunburns I got as a kid keep me watching for these things.
Good luck!