Question for the LPG affictionados

[FXST01]

Is the reducer supposed to positioned so that it is vertical with the gas line at the bottom? (even for an injected system)

 

[Cheap6]

Converter? Vapour line at the bottom? If so, yes, so as to keep the waxy/oily components that drop out of the fuel away from the converter diaphram. It's not absolutely vital though.