What happens in i put dry ice in my water cooling loop and leave the lid off?
Dunno, could be funny, never heard of anyone doing that.
Your putting C02 gas into your loop, it's just like air bubbles I guess when it evaporates..
would it make the water cooler at all?
Yeah,generally I think the water is going to get cool as the dry ice evaporates..you dont want to do that though with all the "ice smokes" coming out lol.. put in some CO2 and it'll become carbonated water loop lol..