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Thanks for stoppin in, good to see you're still around Squidgey. I took a bit of a sabbatical from GC, but I'm excited for my first grow with the HPS.
As far as pH and TDS I've got digital Hanna meters. And even without an intake hole, my temps are pretty kosher. 12 inches below the light the air is at 82 F, and the water is 73 F. I really don't want to put any more holes in the walls, so unless it starts getting hotter I'm gonna try and keep it as is.
For the door, I think I'm gonna cover it in black/white poly. They've got a good deal at the hydro shop and I don't feel like hanging mylar in the whole closet. Plus I really think flat white is almost as reflective as mylar. Anyone else got thoughts on this? I'll definitely look into a draught excluder though. Don't know exactly what it is/where to get it, but I think I know what you're talking about. I'll check Home Depot.
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