Just had LOX (refill) delivered 2 days ago (don't ask)
Just found no "filling instuctions" in welcome pack (reads like do - DON'T pharmaceutical medicine leaflet) Dolby Vivisol website dead loss, but does have pictures of said massive LOX bottle and cassette otherwise - welcome pack.
Should have video filmed the contact training at rear of van !!!! (it has a hoist/crane in rear)
What they don't tell you untill the van turns up, is size /restrictions/access rights, and did I tell you - the "Instuctions" relating to a massive dangerous heavy pressure vessel and it proper use/misuse.
Rant Over ---- Elrond