Re: Keeping the water cool !
I should add that the water I use isn't exactly warm. Slightly warmer than room temp usually gives me the best results.
Back in the day when I used a tiny Chinese rig, I would say ice helped smooth the smoke out to some degree, but I was also using sub-par parts in the rest of my setup, so who knows. When I upgraded and went the Khalil route, The length and bore of the stem did a plenty good job smoothing out the smoke without any silly additives to the bottle.
Darth Coyote, Executor of EGOB and the Black Leaf Brotherhood.