Quote Originally Posted by Reefer Rogue
Do most bubblers have slides or carbs? Also, how much water are you supposed to put in, i was always confused about that...
They can have both, actually. My Salvia bubbler has a slide that works really well, but my Marihuana bubbler has a carb. It's really just personal preference...

But as to how much water you have to put in, you can really put however much you need to make sure that the bottom of the downstem is covered, preferably by an inch or more of water so you can get the full effects of the water filtering and cooling the smoke.