I just had similar issues with sludgy resevoir (overload of undisolved Great White) and ph climbing from 6 to almost 9 every 24 hours.Just rechecked PH and it’s over 7 so have added some ph down. Ppm is at 900
Pictures look the same although mine didn't get that bad.
I emptied everything out and started fresh, hosed out all the buckets etc and made up fresh nutrient water.
If you can get your ph stable around 6, winning. Water temperature could come up a little bit too.
Also running GH TRIO here... I'll link you to my thread in a sec
M
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