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About Barbarossa

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    Junior Member
  1. Gas can back up in vents (as can water in pipes) if the output area is full or the gas cannot leave the vent fast enough due to high pressures, I believe. I found out about this when I made a cooled research area for the computer. I piped in air without a valve and it quickly filled the room with full pressure causing the vent to be overpressurized. I then added a valve and slowed the flow, however, since the room was still very pressurized the large amount of gas in the vent that was already there was backed up.