The little hole near the arrow is your airflow. Try unbending a paper clip and feeding it through. The hold the glass and use the paper clip for better leverage in the base. I'd also suggest upgrading your setup a bit. My wife had one of those and it didn't help her quit. It wasn't until she started using suborn tanks that she was able to. Also vaping Soylent green from vape wild. Pistachio ice cream. Yum.