Yes, it works...it's just normal science!
I a groom at the size of your tent it worked like i wrote, but i don't know how it works in dwc...it's all about transpiration!!!
will tag you in some VERY informative threads here tomorow....no problem of the ex, in the tent it's own clime, you have to control by hours! rh to high increase, to low reduce, also at night with the windows at outside temps/rh..
replacing salt i did it every 12 hours, because i was once in the same situation like you...my dehumidifier is in the middle of my groom at it's best to control clims and yes!!! i only work with a ex fan in my self builded groom, no tent that will not work for me...I LIKE..building myself, bro