Forum Discussion
dougrainer
Feb 08, 2020Nomad
On a correctly purged LP tank WHEN NEW, there should be NO AIR in any LP tank DOT or ASME after that. But, air can be introduced when the tank has been serviced or repaired. IF that happens you tell the LP station and they will PURGE the tank to get rid of any possible air. BUT, if a tank has never been "messed" with there is no real way to introduce AIR into the tank. The filling nozzles are connected and only then is LP liquid installed. The gauges are NOT that accurate. You can still have a few gallons even when the tank is showing empty. Doug
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