Yeah I i dint clue in that you were not doing dwc.
Because my pumps are not in the water so no heat issues there not even in my tent. Lol obviously I don't use a submersible.
So do you feed then drain to waste? Or recirculate?
That's interesting stuff cemchris. I know/knew you cant add straight potassium silicate to a nutrient solution because at the point it enters the nutrient solution the ph spikes real high before it dilutes and can precipitate nutrients, but I've not had a problem diluting the hell out of it and adding it real slow at the end.
My only problem adding it first is I'd have to know exactly how much to add to hit my target ph. which I dont. But maybe I'll work that out and try switching things around and see if I notice a difference.
My calcium silicate FWIW, is already prebuffered and ph balanced, and it always goes in first. I really only use the potassium silicate for ph up.
Yeah and that works 100% as long as you aren't hitting above like 70 ppm total and its pretty diluted. You will know pretty quick if you solution gets cloudy after you add it in.
Oh I know the clouds.. lol, I avoid clouds in my res. it's why I stir the res so vigorously while I slowly drizzle it in, it doesnt cloud up that way. Takes me a couple mins to slowly bring the ph up.
Tonight I mixed the potassium silicate in first. Took a guess at how much was needed...
guess I got lucky! View attachment 964989
Isn't it nice when it works out like that after a while? I can pretty much use a cap of AN PH down after agsil and it gets me 5.7-6.0 when its all said and done at the end.