Hey, recently I refilled my car's a/c gas or liquid or whatever goes in the a/c. I filled it in the low pressure hose and when I started driving the car, I was just taking off and I heard a loud hiss and it smelled like the a/c gas. I also saw some of flying out the side of the car. After that happened the car started throwing cool air like it's supposed to. Then the air got warm again and I heard the hiss again. After that, cool air was being produced until the same thing happened again about 45 minutes after the last time. It hasnt happened anymore and the air is still coming out cool, but I would like to know what is wrong because I don't want it to happen again the next time I refill.