can someone please tell me what the relavence of the pi symbol on an air bottle is?
i saw in another post about DOT bottle also?
what bearing do these have on playing etc?
pi means that it's tested and legal for uk use
dot bottles are tested and legal for us use
you can not use a pi bottle in the us, or a dot bottle in the uk
They have no bearing for play, unless you are taking it accross the pond - in which case it basically means that you'll spend the trip watching and not playing