Hi - if it's gurgling or leaking out of the bottom it's flooded. You can try a "cold draw" gently inhaling from the mouth piece without turning on the power to listen for gurgling without getting a mouthful of juice. If it's flooded, take it off the battery, and VERY gently blow the excess into a paper towel. You can also roll up a small piece of paper towel and put it up the hole at the bottom to blot up juice. Make sure you wipe off the connection (both on the carto and the battery) before you put it back on. Getting a little liquid down the center air tube happens all the time when filling cartos.