So I knocked over my CO2 tank! It was over for about 5 seconds until I could get it. The gauges all went to zero. Turns out it just got knocked loose. I let the tank sit for about 10 minutes, then put the regulator back on. The output gauge maxes out and then I hear a hiss. The tank pressure gauge is fine. I let it sit for about an hour and tried again, same results. So did I just ruin my regulator? Or does the tank need to settle some more?