Why does my new propane tank not fill properly?

• All new propane tanks must be purged of air and moisture before being filled for the first time with propane. 

• The purging process, which must be done by a trained propane service professional, requires that a small amount of propane vapor gas be injected into the tank and then evacuated. This process is performed 3-4 times. Do not attempt this purging on your own.  Always have a qualified professional purge your tank.

• Propane is heavier than air and will force the air out of the propane tank during the evacuation of the vapor. 

• Filling with propane can then proceed. 

• If the tank is not purged, then air is the first gas to exit the propane cylinder and your appliance will not function properly.

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