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

Hi Peter,
You sound highly educated as to what the fittings are actually called. I will answer in my highly un-technical way. I used an adapter that attached to my US fitting that went into my US tanks that allowed my to use Camping Gas bottles when we were in the Med for 5 years. It was not the cheapest gas, but it worked fine for us and we were able to get CG bottles swapped everywhere in the Med and many places in Northern Europe. The adapter can be had in the US from Trident and may be called a Euro to US adapter rather than the more accurate Camping Gas to US adapter.
I hope that comes close to answering your question as I do not know what Gas G.3 or US POL G.9 referrs to.
Let us know how things unfold, Dick Stevenson, s/v Alchemy