@scorp, lol. I wish it were that easy for me. My tent hits 32c at times pal. So, I struggle to keep temps at 25. I've tried ice bottles and so on. Just not worth the hassle.... if I had 1 or 2 grows I'd say yeah. But my DWC took a back seat, as I had 12 other plants to worry about, but my focus on them now and they doing well, and eating even in such high water and no rot so can't complain, just got to keep forking out money on h202..