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ScottG's avatar
ScottG
Nomad
Aug 10, 2017

Purging new tanks

So I've got two new PP tanks. Tried to have them filled but they could only get gas into one bottle. The other tank took a tiny amount and just wouldn't take any more. The guy opened the bleeder screw to let air out as gas tried to flow in but no joy.
I understand there's some kind of "purging" that has to be done. Is this something more than just opening the vent screw thingy?

Thanks.
  • Seems there is "purging", "venting," and "evacuating."

    Some new tanks come evacuated - virtually no air in them. Simply fill them with propane.

    Some tanks come with air in them at atmospheric pressure. Some simply fill them while simultaneously bleed a combination of air and propane from the vent. 3-5 refills and the tank would be virtually air free. (Others might take them to a place where they would use a special fitting to evacuate the tank prior to filling.)

    I have no idea why a bottle with air in it could not be vented.
  • Ahh, a special fitting - that explains it.
    Thanks DTR, I'll take it to Suburban Propane.

    Scott
  • My new tanks...new Arctic Fox also, had to be purged. Took them to a local propane distributor (not just a refill outlet). They purged them and filled them.

    The guy used a special fitting during the purge process...then they took a full amount of propane.

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