I stood in my kitchen next to the worktop and noticed as I had removed the milk from the freezer and sat it on the worktop to defrost, how it gradually became more and more covered in water.
If you put a frozen liquid of some sort (in a container obv) the low temperature will cause the moisture in the air to condense on it's surface. This will remove a lot of moisture from the air in the growspace. Obviously it would lower the temp in the grow room so try to keep it as low to the ground as possible. This should also decrease the likelihood of the condensed water re-evaporating back into the air (unless you can think of a way to drain it off outside of the space).
This is an untested hypothesis and am currently pretty up due to the early Sativa crop. Epiphany or bollocks. Rhetorical.
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