I’m so close to finally shooting my Texan. I bought I’m on my second compressor, the first one didn’t work correctly. I just got a new one today started to fill my tank and the gauges started to move (Finally). I stopped because I’m not real sure what each gauge means on the tank. Obviously one measures what’s in the tank, but I’m not sure what one. The other I’m not sure what it measures. Hopefully someone can help.