While uncommon, occasionally the wick in a cartridge can become oversaturated, making it a bit difficult to draw from. Try these steps, which often solve the issue:
1. With the cartridge attached to your HIGHLIGHTER, bring to mouth at a 45-degree angle for optimal airflow. Take a few strong, extended draws, which usually clear any excess oil from the airflow chamber and allow smooth vaporization.
2. With the cartridge attached to HIGHLIGHTER, rub between your palms for 10-20 seconds or until the hardware slightly warms from the heat of your hands.
3. Separate the cartridge from HIGHLIGHTER and place the cartridge inside a small zipper baggie. Remove excess air and completely seal the baggie. Run warm water over the sealed baggie for 1-2 minutes. This effectively warms the oil to increase its flow without damaging the cartridge.
Never expose a cartridge or HIGHLIGHTER to extreme heat (below 45° F or over 85° F) for extended periods of time. Always store in a cool, dry place out of direct sunlight and extreme temperatures.
Extended draws taken in rapid succession can heat the oil enough to force too much into the airflow chamber. We recommend short draws and letting the oil settle and slightly cool between puffs.