I am struggling to theoretically understand the often-quoted statement that our "propane and butane bottles must be transported upright". Carrying them on their side was common practice for years and plastic cradles were sold for that very purpose. I find it damn near impossible to safely bring home a refilled bottle secured vertically; it's much easier to safely wedge it on its side in the boot. There are lashings in my boot for this but nothing for something this shape and vertical.
I have heard statements that "liquid could leak". My rudimentary understanding of both liquid and gas flow through orifices, valves etc does not convince me that this makes any difference to the actual mass of gas that would be released from a non secure valve. If it was leaking the immediate results would be just the same if vertical or horizontal.
I accept the argument that it needs leaving vertical for a few minutes before being put to use so liquid cant enter the regulator; the dangers in that I well understand but as yet I have found or heard no convincing argument against its transport horizontally when uncoupled. Clearly I accept it must be shut tight, safely secured and its unwise to leave it too long in the boot just in case it has a trace of a weep, its just this insistence in it being vertical.
I have heard statements that "liquid could leak". My rudimentary understanding of both liquid and gas flow through orifices, valves etc does not convince me that this makes any difference to the actual mass of gas that would be released from a non secure valve. If it was leaking the immediate results would be just the same if vertical or horizontal.
I accept the argument that it needs leaving vertical for a few minutes before being put to use so liquid cant enter the regulator; the dangers in that I well understand but as yet I have found or heard no convincing argument against its transport horizontally when uncoupled. Clearly I accept it must be shut tight, safely secured and its unwise to leave it too long in the boot just in case it has a trace of a weep, its just this insistence in it being vertical.