vent_pump

Vars
open	Is the vent open to put a piece of paper in it
pressure_checks	What do we check when releasing/siphoning air - internal or external pressure
releasing	If false, siphons instead of releasing air
weld_burst_pressure	How much pressure does there have to be in the pipe to burst the vent open?
welded	Is this vent welded shut

Var Details

Is the vent open to put a piece of paper in it

What do we check when releasing/siphoning air - internal or external pressure

If false, siphons instead of releasing air

How much pressure does there have to be in the pipe to burst the vent open?

Is this vent welded shut