I bought a pack of CE3s from Discount Vapers and initially loved the vapor and taste. I also loved how easy the came apart and could be cleaned. But after a few days, I noticed leaking - onto the battery and through the mouthpiece. I became frustrated and went back to V2 Ego Visions - the long wick versions. I like AVE e-juice which is pure VG based, and thick. So wicking is always a problem unless I thin it with a little distilled water.
But after reading mutliple threads here, I found that I was stretching the top of the tube of the CE3 using a standard acrylic 510 drip tip, causing a leak in the upper silicone seal. This allowed air in and broke the vacuum that is normally formed. So I went back to the rubber drip tip that was supplied in the box, and have had no problems. I also trimmed the wicks flush with the bottom tube to get more juice into the atomizer. I have had good results since then.
But after reading mutliple threads here, I found that I was stretching the top of the tube of the CE3 using a standard acrylic 510 drip tip, causing a leak in the upper silicone seal. This allowed air in and broke the vacuum that is normally formed. So I went back to the rubber drip tip that was supplied in the box, and have had no problems. I also trimmed the wicks flush with the bottom tube to get more juice into the atomizer. I have had good results since then.