Review on JIFETOR Refrigerant Recharge Conditioning Measuring Tools & Equipment by Charles Purnell

New jars have a rubber seal that seals the jar when the dispenser is removed. Therefore, you must use this dispenser in reverse as usual. It is possible to pierce completely.3. Continue screwing the glass until it stops.3. Turn the handle slightly in the opposite direction. I mean about 1/10th of the way.4. Listen for the hiss and look at the sensor. If there is no hiss, follow step 3 or step 2, but you will have to wiggle the screw until you hear a hiss. The bench is noticeably lighter.