Big Green Shed, Barbies Galore, Masters $19.95 to $24.............Woollies Caltex have seen for $24..........when I swap I check out the bottle and pick the one I want, checking the date stamp for when it was last checked.......no daggy ones in my camp, though the ones that came with Big Mal while re checked just last year are daggy so will gladly dump them when empty.
Was taught to turn tap all the way then back down to off and then just a turn for the welding gear, that way the tap didn't end up with a tight spot.................bloke who taught me I think used to weld with a foot bellows, man he was old, top flame man though.