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- RDX Aspec Adv.
Yeap, this one-way check valve mounted on top of the rear differential casing is the "exhaust". The "intake" is at the side and a bit lower with a very long vent hose routed to upper rear bumper area.
Well...huh. I have no clue how mine sucked up water. Maybe the hot diff plus cold water generated some pressure diff somehow and who the hell knows?