I travel with my gas bottle in a milk crate in the back of an enclosed ute with the fridge [ignition source]
When you think about it realistically there are 3 places the bottle will leak from.
Through the steel cylinder if its very rusty [note gas is wet so they rust from the inside, hence why they get tested every 10 years.
Past the spindle or shaft of the valve. [packing glad, stuffing box what ever you want to call it]
Out the valve as it may be faulty.
I have seen all 3 issues over the years, thankfully not often but more often as the swap & go thing started.
To eliminate most of the risk
Purchased a brass pol fitting plug from Gameco, chuck the useless plastic one how the gas authority thinks these can hold 200psi is beyond me, then again they did ok the canister cookers that blow people up.
Purchase your own bottle and get it refilled, at least you know it hasn't been sitting on the back of a trawler.
Only take a bottle that is under 5 years old.
Get some soapy water and splash it round the valve assembly before you travel.
If it leaks and explodes after that God didn't want you here.
As for an accident, above your head on the roof, in the back or attached to your trailer your in Gods hands again.
