I'm running a setup in a garage where i have a large tent for vegging
and use the rest of the garage's open space with no tents for flowering,
with a c02 propane generator.
i'm wondering if i should have the c02 sensor be located inside the the
tent (so that c02 levels remain constant 24 hours...
I'm wondering if my window ac unit will bring any fresh air (c02) into my grow room or if I need to add c02 to it ---- im using 2 rooms.
1 for vegging with low cost cfls/ hydro / no water chillers and a 12k btu ac.
then 1 for flowering thath as water chillers, 24k btu ac, and c02 in liquid...