I would like to seek advice. We have 2x 10kg composite propane bottles we acquired in Iceland. We cannot get these commercially refilled in Greenland and we don’t really want to replace them with the indigenous steel ones. I understand if I connect the regulator on our empty composite via a hose to a regulator on a Greenlandic steel cylinder and the hold the latter upside down and above the composite then the liquid will flow into our composite.

Before I do this can someone please confirm I’m not going to blow up the harbour. I am a little nervous so advice please.
Simon