Highland grow chamber

[druboi]

I'm thinking of getting one of those Mylar grow tents, but trying to figure out how to keep it cool and humid. I can cool the ambient room to within 5-10F of where I need the night drop to be, but I need that extra bit of cooling. I'm considering using a small evaporative cooler, placed inside the Mylar tent. They are said to work best in hot dry areas, but I'm wondering if I will work for such a small decrease in temperature, in a humid, room temperature situation. The problem with simply cooling with an AC unit is that small humidifiers would need constant refilling to compensate and I'm not interested in the obligation of daily filling of humidifiers.Thoughts?

[coline]

try finding if there is some sort of water cooling system, as to cool the water in the trays, that may work, but I haven't look if those exist, I think they may do, since some aquariums may need them