A work vehicle (100) and a method of operating the work vehicle (100) is disclosed. The work vehicle comprising: a metering system (130) to meter a commodity out from a commodity container (128) at a predetermined rate; and a delivery system (132) with a run (133) configured to convey the metered commodity, the run comprising: an upstream flow structure having an inlet (166) that is configured to receive the metered commodity from the metering system, an upstream flow portion (142) including a suction generator structure (168) with a flow passage (182) that is in fluid communication with the inlet (166), the flow passage including a venturi profile (181); a downstream flow structure (170) that is fluidly connected to the upstream flow structure to receive the metered commodity from the flow passage (182), the downstream flow structure configured to receive an airstream (153) that conveys the metered commodity in a downstream direction through the downstream flow structure; and a compressed air source (194) that is fluidly connected to the suction generator structure (168) and configured to provide pressurized air through the flow passage (182) to create suction that sucks the metered commodity away from the metering system and toward the downstream flow structure (170).