Hi there, i have a problem. When im vaping, it creates bubbles of air inside the tank and these bubbles get stuck in the holes, that lead to the coil. And because these holes are blocked by bubbles, the juice cant get in there and the cotton is not saturating properly. I already asked this question in our local vape community, where i was told to pierce the cotton with a needle. It helped - partially. The first day after i put new coil in, and pierced the cotton as i was told, it worked perfectly - the taste was awesome and bubbles were leaving the holes by themselves. But today, they started getting stuck there again and the problem is back. I can get them out, when i blow inside the vape (instead of drawing from it) and make a few priming puffs here and there, but thats more of a temporary solution. Does anyone know what could i do about this, please? Its getting really frustrating and im running out of ideas. Thanks for all your advice EDIT: I have Eleaf iStick Pico Mega grip + Eleaf Melo 3 tank. Currently im using 0.25 coil and smoking 80/20 VG/PG juice if that will be of any help.