yea but that will cause a super fast evaporation rate and cause your PPMs and PH to go all over the place.. It will cause evaporative cooling but you dont want that water to evaporate any faster than it already will be in aeroponics.. I just cut the minifridge up and stuck the entire chiller part into the res.. I will post pics if it works better.. it seems like it will.. I took pics of me tearing it apart too so we will see how the $54 brand new dorm fridge does.

That 8 degree drop is questionable too.. i had highs of 86 without the cooler and lows of 78 with the cooler.. but sometimes res temp would get up to 82 with the cooler.